Cover Page - shares	6 Months Ended
Cover Page - shares	Jun. 30, 2023	Jul. 24, 2023
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2023
Document Transition Report	false
Entity File Number	001-38995
Entity Registrant Name	Sunnova Energy International Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	30-1192746
Entity Address, Address Line One	20 East Greenway Plaza, Suite 540
Entity Address, City or Town	Houston
Entity Address, State or Province	TX
Entity Address, Postal Zip Code	77046
City Area Code	281
Local Phone Number	892-1588
Title of 12(b) Security	Common Stock, $0.0001 par value per share
Trading Symbol	NOVA
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		116,401,041
Entity Central Index Key	0001772695
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q2
Amendment Flag	false
Current Fiscal Year End Date	--12-31

UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Thousands

Jun. 30, 2023

Dec. 31, 2022

Current assets:

Cash and cash equivalents

$ 187,331

$ 360,257

Accounts receivable—trade, net

28,764

24,435

Accounts receivable—other

114,081

212,397

Other current assets, net of allowance of $4,093 and $3,250 as of June 30, 2023 and December 31, 2022, respectively

416,590

351,300

Total current assets

746,766

948,389

Property and equipment, net

4,512,510

3,784,801

Customer notes receivable, net of allowance of $98,244 and $77,998 as of June 30, 2023 and December 31, 2022, respectively

3,228,299

2,466,149

Intangible assets, net

148,292

162,512

Goodwill

13,150

Other assets

957,778

961,891

Total assets

^[1]

9,606,795

8,336,892

Current liabilities:

Accounts payable

138,843

116,136

Accrued expenses

105,617

139,873

Current portion of long-term debt

241,968

214,431

Other current liabilities

94,042

71,506

Total current liabilities

580,470

541,946

Long-term debt, net

6,123,923

5,194,755

Other long-term liabilities

914,277

712,741

Total liabilities

^[1]

7,618,670

6,449,442

Commitments and contingencies

Redeemable noncontrolling interests

100,081

165,737

Stockholders' equity:

Common stock, 116,393,942 and 114,939,079 shares issued as of June 30, 2023 and December 31, 2022, respectively, at $0.0001 par value

12

11

Additional paid-in capital—common stock

1,661,949

1,637,847

Accumulated deficit

(272,186)

(364,782)

Total stockholders' equity

1,389,775

1,273,076

Noncontrolling interests

498,269

448,637

Total equity

1,888,044

1,721,713

Total liabilities, redeemable noncontrolling interests and equity

$ 9,606,795

$ 8,336,892

[1]

The consolidated assets as of June 30, 2023 and December 31, 2022 include $3,813,101 and $3,201,271, respectively, of assets of variable interest entities ("VIEs") that can only be used to settle obligations of the VIEs. These assets include cash of $43,794 and $40,382 as of June 30, 2023 and December 31, 2022, respectively; accounts receivable—trade, net of $11,273 and $8,542 as of June 30, 2023 and December 31, 2022, respectively; accounts receivable—other of $486 and $810 as of June 30, 2023 and December 31, 2022, respectively; other current assets of $535,309 and $422,364 as of June 30, 2023 and December 31, 2022, respectively; property and equipment, net of $3,171,393 and $2,680,587 as of June 30, 2023 and December 31, 2022, respectively; and other assets of $50,846 and $48,586 as of June 30, 2023 and December 31, 2022, respectively. The consolidated liabilities as of June 30, 2023 and December 31, 2022 include $72,509 and $66,441, respectively, of liabilities of VIEs whose creditors have no recourse to Sunnova Energy International Inc. These liabilities include accounts payable of $10,870 and $9,015 as of June 30, 2023 and December 31, 2022, respectively; accrued expenses of $82 and $287 as of June 30, 2023 and December 31, 2022, respectively; other current liabilities of $4,504 and $4,420 as of June 30, 2023 and December 31, 2022, respectively; and other long-term liabilities of $57,053 and $52,719 as of June 30, 2023 and December 31, 2022, respectively.

UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($)
$ in Thousands

Jun. 30, 2023

Dec. 31, 2022

Other current asset, allowance

$ 4,093

$ 3,250

Customer notes receivable, allowance

$ 98,244

$ 77,998

Common stock, issued (in shares)

116,393,942

114,939,079

Common stock, par value (in USD per share)

$ 0.0001

Assets

^[1]

$ 9,606,795

$ 8,336,892

Cash

187,331

360,257

Accounts receivable—trade, net

28,764

24,435

Accounts receivable—other

114,081

212,397

Other current assets

416,590

351,300

Property and equipment, net

4,512,510

3,784,801

Other assets

957,778

961,891

Liabilities

^[1]

7,618,670

6,449,442

Accounts payable

138,843

116,136

Accrued expenses

105,617

139,873

Other current liabilities

94,042

71,506

Other long-term liabilities

914,277

712,741

Primary beneficiary

Assets

3,813,101

3,201,271

Cash

43,794

40,382

Accounts receivable—trade, net

11,273

8,542

Accounts receivable—other

486

810

Other current assets

535,309

422,364

Property and equipment, net

3,171,393

2,680,587

Other assets

50,846

48,586

Liabilities

72,509

66,441

Accounts payable

10,870

9,015

Accrued expenses

82

287

Other current liabilities

4,504

4,420

Other long-term liabilities

$ 57,053

$ 52,719

[1]

The consolidated assets as of June 30, 2023 and December 31, 2022 include $3,813,101 and $3,201,271, respectively, of assets of variable interest entities ("VIEs") that can only be used to settle obligations of the VIEs. These assets include cash of $43,794 and $40,382 as of June 30, 2023 and December 31, 2022, respectively; accounts receivable—trade, net of $11,273 and $8,542 as of June 30, 2023 and December 31, 2022, respectively; accounts receivable—other of $486 and $810 as of June 30, 2023 and December 31, 2022, respectively; other current assets of $535,309 and $422,364 as of June 30, 2023 and December 31, 2022, respectively; property and equipment, net of $3,171,393 and $2,680,587 as of June 30, 2023 and December 31, 2022, respectively; and other assets of $50,846 and $48,586 as of June 30, 2023 and December 31, 2022, respectively. The consolidated liabilities as of June 30, 2023 and December 31, 2022 include $72,509 and $66,441, respectively, of liabilities of VIEs whose creditors have no recourse to Sunnova Energy International Inc. These liabilities include accounts payable of $10,870 and $9,015 as of June 30, 2023 and December 31, 2022, respectively; accrued expenses of $82 and $287 as of June 30, 2023 and December 31, 2022, respectively; other current liabilities of $4,504 and $4,420 as of June 30, 2023 and December 31, 2022, respectively; and other long-term liabilities of $57,053 and $52,719 as of June 30, 2023 and December 31, 2022, respectively.

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Income Statement [Abstract]
Revenue	$ 166,377	$ 147,012	$ 328,073	$ 212,734
Operating expense:
Cost of revenue—depreciation	30,322	23,314	58,519	45,272
Cost of revenue—inventory sales	26,543	48,967	78,322	48,967
Cost of revenue—other	31,394	9,838	50,618	17,407
Operations and maintenance	29,865	7,252	40,604	14,013
General and administrative	101,384	68,242	202,645	138,465
Other operating (income) expense	6,640	(7,870)	5,917	(14,453)
Total operating expense, net	226,148	149,743	436,625	249,671
Operating loss	(59,771)	(2,731)	(108,552)	(36,937)
Interest expense, net	56,947	24,571	142,554	23,556
Interest income	(26,292)	(13,311)	(51,080)	(24,243)
Other (income) expense	3,172	(160)	3,408	(315)
Loss before income tax	(93,598)	(13,831)	(203,434)	(35,935)
Income tax expense	7,183	0	7,693	0
Net loss	(100,781)	(13,831)	(211,127)	(35,935)
Net income (loss) attributable to redeemable noncontrolling interests and noncontrolling interests	(14,690)	27,306	(43,953)	40,260
Net loss attributable to stockholders	$ (86,091)	$ (41,137)	$ (167,174)	$ (76,195)
Net loss per share attributable to stockholders - basic (in USD per share)	$ (0.74)	$ (0.36)	$ (1.45)	$ (0.67)
Net loss per share attributable to stockholders - diluted (in USD per share)	$ (0.74)	$ (0.36)	$ (1.45)	$ (0.67)
Weighted average common shares outstanding - basic (in shares)	116,236,741	114,548,970	115,658,570	114,027,097
Weighted average common shares outstanding - diluted (in shares)	116,236,741	114,548,970	115,658,570	114,027,097

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
CASH FLOWS FROM OPERATING ACTIVITIES
Net loss	$ (211,127)	$ (35,935)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation	67,875	50,807
Impairment and loss on disposals, net	17,344	789
Amortization of intangible assets	14,216	14,224
Amortization of deferred financing costs	10,734	5,919
Amortization of debt discount	7,909	3,705
Non-cash effect of equity-based compensation plans	14,318	15,596
Unrealized (gain) loss on derivatives	8,011	(1,017)
Unrealized (gain) loss on fair value instruments and equity securities	9,328	(14,761)
Other non-cash items	2,441	(25,381)
Changes in components of operating assets and liabilities:
Accounts receivable	89,158	(61,246)
Other current assets	(90,896)	(71,994)
Other assets	(98,175)	(59,273)
Accounts payable	(38)	7,343
Accrued expenses	(29,876)	15,500
Other current liabilities	13,599	(2,931)
Other long-term liabilities	(7,363)	(3,688)
Net cash used in operating activities	(182,542)	(162,343)
CASH FLOWS FROM INVESTING ACTIVITIES
Purchases of property and equipment	(748,152)	(380,435)
Payments for investments and customer notes receivable	(517,099)	(573,248)
Proceeds from customer notes receivable	80,931	52,653
Proceeds from investments in solar receivables	4,929	5,620
Other, net	5,468	1,418
Net cash used in investing activities	(1,173,923)	(893,992)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from long-term debt	1,760,680	1,239,903
Payments of long-term debt	(808,564)	(348,716)
Payments on notes payable	(1,915)	0
Payments of deferred financing costs	(21,684)	(16,052)
Proceeds from issuance of common stock, net	(1,049)	(3,178)
Contributions from redeemable noncontrolling interests and noncontrolling interests	319,356	177,279
Distributions to redeemable noncontrolling interests and noncontrolling interests	(18,372)	(12,330)
Payments of costs related to redeemable noncontrolling interests and noncontrolling interests	(5,312)	(8,172)
Other, net	(6,375)	(406)
Net cash provided by financing activities	1,216,765	1,028,328
Net decrease in cash, cash equivalents and restricted cash	(139,700)	(28,007)
Cash, cash equivalents and restricted cash at beginning of period	545,574	391,897
Cash, cash equivalents and restricted cash at end of period	405,874	363,890
Restricted cash included in other current assets	(37,825)	(53,842)
Restricted cash included in other assets	(180,718)	(101,934)
Cash and cash equivalents at end of period	187,331	208,114
Non-cash investing and financing activities:
Change in accounts payable and accrued expenses related to purchases of property and equipment	4,315	11,246
Change in accounts payable and accrued expenses related to payments for investments and customer notes receivable	9,200	1,904
Non-cash issuance of common stock related to the settlement of contingent consideration	10,832	16,014
Non-cash settlement of receivables and payables with primarily dealers	12,803	0
Supplemental cash flow information:
Cash paid for interest	123,966	61,148
Cash paid for income taxes	$ 9,193	$ 0

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF REDEEMABLE NONCONTROLLING INTERESTS AND EQUITY - USD ($) $ in Thousands	Total	Total Stockholders' Equity	Common Stock	Additional Paid-in Capital - Common Stock	Accumulated Deficit	Noncontrolling Interests
Redeemable noncontrolling interest, beginning balance at Dec. 31, 2021	$ 145,336
Increase (Decrease) in Redeemable Noncontrolling Interests [Roll Forward]
Net income (loss)	(2,432)
Contributions from redeemable noncontrolling interests and noncontrolling interests	3,757
Distributions to redeemable noncontrolling interests and noncontrolling interests	(1,122)
Costs related to redeemable noncontrolling interests and noncontrolling interests	(57)
Equity in subsidiaries attributable to parent	(173)
Other, net	(123)
Redeemable noncontrolling interest, ending balance at Mar. 31, 2022	145,186
Stockholders' equity, beginning balance (in shares) at Dec. 31, 2021			113,386,600
Stockholders' equity, beginning balance at Dec. 31, 2021	1,476,277	$ 1,189,495	$ 11	$ 1,649,199	$ (459,715)	$ 286,782
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(19,672)	(35,058)			(35,058)	15,386
Issuance of stock, net (in shares)			524,788
Issuance of common stock, net	(2,976)	(2,976)		(2,976)
Contributions from redeemable noncontrolling interests and noncontrolling interests	48,132					48,132
Distributions to redeemable noncontrolling interests and noncontrolling interests	(4,732)					(4,732)
Costs related to redeemable noncontrolling interests and noncontrolling interests	(2,292)					(2,292)
Equity in subsidiaries attributable to parent	173	69,769			69,769	(69,596)
Equity-based compensation expense	10,864	10,864		10,864
Other, net	174					174
Stockholders' equity, ending balance (in shares) at Mar. 31, 2022			113,911,388
Stockholders' equity, ending balance at Mar. 31, 2022	1,505,948	1,232,094	$ 11	1,657,087	(425,004)	273,854
Increase (Decrease) in Redeemable Noncontrolling Interests [Roll Forward]
Net income (loss)	4,563
Contributions from redeemable noncontrolling interests and noncontrolling interests	13,423
Distributions to redeemable noncontrolling interests and noncontrolling interests	(1,239)
Costs related to redeemable noncontrolling interests and noncontrolling interests	(193)
Equity in subsidiaries attributable to parent	(10,168)
Other, net	(65)
Redeemable noncontrolling interest, ending balance at Jun. 30, 2022	151,507
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(18,394)	(41,137)			(41,137)	22,743
Issuance of stock, net (in shares)			745,829
Issuance of common stock, net	15,828	15,828		15,828
Contributions from redeemable noncontrolling interests and noncontrolling interests	111,967					111,967
Distributions to redeemable noncontrolling interests and noncontrolling interests	(5,237)					(5,237)
Costs related to redeemable noncontrolling interests and noncontrolling interests	(2,417)					(2,417)
Equity in subsidiaries attributable to parent	10,168	83,316			83,316	(73,148)
Equity-based compensation expense	4,732	4,732		4,732
Other, net	(2,011)	(1)			(1)	(2,010)
Stockholders' equity, ending balance (in shares) at Jun. 30, 2022			114,657,217
Stockholders' equity, ending balance at Jun. 30, 2022	1,620,584	1,294,832	$ 11	1,677,647	(382,826)	325,752
Redeemable noncontrolling interest, beginning balance at Dec. 31, 2022	165,737
Increase (Decrease) in Redeemable Noncontrolling Interests [Roll Forward]
Net income (loss)	(20,404)
Contributions from redeemable noncontrolling interests and noncontrolling interests	60,203
Distributions to redeemable noncontrolling interests and noncontrolling interests	(1,448)
Costs related to redeemable noncontrolling interests and noncontrolling interests	(2,605)
Equity in subsidiaries attributable to parent	(21,528)
Other, net	(453)
Redeemable noncontrolling interest, ending balance at Mar. 31, 2023	179,502
Stockholders' equity, beginning balance (in shares) at Dec. 31, 2022			114,939,079
Stockholders' equity, beginning balance at Dec. 31, 2022	1,721,713	1,273,076	$ 11	1,637,847	(364,782)	448,637
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(89,942)	(81,083)			(81,083)	(8,859)
Issuance of stock, net (in shares)			645,580
Issuance of common stock, net	(1,624)	(1,624)	$ 1	(1,625)
Contributions from redeemable noncontrolling interests and noncontrolling interests	114,748					114,748
Distributions to redeemable noncontrolling interests and noncontrolling interests	(7,106)					(7,106)
Costs related to redeemable noncontrolling interests and noncontrolling interests	(1,460)					(1,460)
Equity in subsidiaries attributable to parent	21,528	78,893			78,893	(57,365)
Equity-based compensation expense	9,515	9,515		9,515
Other, net	(110)					(110)
Stockholders' equity, ending balance (in shares) at Mar. 31, 2023			115,584,659
Stockholders' equity, ending balance at Mar. 31, 2023	1,767,262	1,278,777	$ 12	1,645,737	(366,972)	488,485
Increase (Decrease) in Redeemable Noncontrolling Interests [Roll Forward]
Net income (loss)	860
Contributions from redeemable noncontrolling interests and noncontrolling interests	40,201
Distributions to redeemable noncontrolling interests and noncontrolling interests	(2,498)
Costs related to redeemable noncontrolling interests and noncontrolling interests	(719)
Equity in subsidiaries attributable to parent	(111,121)
Other, net	(6,144)
Redeemable noncontrolling interest, ending balance at Jun. 30, 2023	100,081
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(101,641)	(86,091)			(86,091)	(15,550)
Issuance of stock, net (in shares)			809,283
Issuance of common stock, net	11,409	11,409		11,409
Contributions from redeemable noncontrolling interests and noncontrolling interests	104,204					104,204
Distributions to redeemable noncontrolling interests and noncontrolling interests	(7,320)					(7,320)
Costs related to redeemable noncontrolling interests and noncontrolling interests	(721)					(721)
Equity in subsidiaries attributable to parent	111,121	180,877			180,877	(69,756)
Equity-based compensation expense	4,803	4,803		4,803
Other, net	(1,073)					(1,073)
Stockholders' equity, ending balance (in shares) at Jun. 30, 2023			116,393,942
Stockholders' equity, ending balance at Jun. 30, 2023	$ 1,888,044	$ 1,389,775	$ 12	$ 1,661,949	$ (272,186)	$ 498,269

Description of Business and Basis of Presentation

6 Months Ended

Jun. 30, 2023

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Description of Business and Basis of Presentation

We are a leading Energy as a Service provider, serving over 348,000 customers in more than 45 United States ("U.S.") states and territories. Sunnova Energy Corporation was incorporated in Delaware on October 22, 2012 and formed Sunnova Energy International Inc. ("SEI") as a Delaware corporation on April 1, 2019. We completed our initial public offering on July 29, 2019 (our "IPO"); and in connection with our IPO, all of Sunnova Energy Corporation's ownership interests were contributed to SEI. Unless the context otherwise requires, references in this report to "Sunnova," the "Company," "we," "our," "us," or like terms, refer to SEI and its consolidated subsidiaries.

We have a differentiated dealer model in which we partner with local dealers who originate, design and install our customers' solar energy systems, energy storage systems and related products and services on our behalf. Our focus on our dealer model enables us to leverage our dealers' specialized knowledge, connections and experience in local markets to drive customer origination while providing our dealers with access to high quality products at competitive prices, as well as technical oversight and expertise. We believe this structure provides operational flexibility, reduces exposure to labor shortages and lowers fixed costs relative to our peers, furthering our competitive advantage.

We provide our services through long-term agreements with a diversified pool of credit quality customers. Our solar service agreements typically are structured as either a legal-form lease (a "lease") of a solar energy system and/or energy storage system to the customer, the sale of the solar energy system's output to the customer under a power purchase agreement ("PPA") or the purchase of a solar energy system, energy storage system and/or accessory either with financing provided by us (a "loan") or paid in full by the customer (a "sale"); however, we also offer service plans and repair services for systems we did not originate. We make it possible in some states for a customer to obtain a new roof and/or other ancillary products. We also allow customers originated through our homebuilder channel the option of purchasing the system when the customer closes on the purchase of a new home. The initial term of our solar service agreements is typically between 10 and 25 years, during which time we provide or arrange for ongoing services to customers, including monitoring, maintenance and warranty services. Our lease and PPA agreements typically include an opportunity for customers to renew for up to an additional 10 years, via two five-year or one 10-year renewal options. Customer payments and rates can be fixed for the duration of the solar service agreement or escalated at a pre-determined percentage annually. We also receive tax benefits and other incentives from leases and PPAs, a portion of which we finance through tax equity, non-recourse debt structures and hedging arrangements in order to fund our upfront costs, overhead and growth investments. Our future success depends in part on our ability to raise capital from third-party investors and commercial sources. We have an established track record of attracting capital from diverse sources. From our inception through June 30, 2023, we have raised more than $13.3 billion in total capital commitments from equity, debt and tax equity investors.

Basis of Presentation

The accompanying interim unaudited condensed consolidated financial statements ("interim financial statements") include our consolidated balance sheets, statements of operations, statements of redeemable noncontrolling interests and equity and statements of cash flows and have been prepared in accordance with accounting principles generally accepted in the United States of America ("GAAP") from records maintained by us. We have condensed or omitted certain information and note disclosures normally included in the financial statements prepared in accordance with GAAP pursuant to the applicable rules and regulations of the Securities and Exchange Commission ("SEC") regarding interim financial reporting. As such, these interim financial statements should be read in conjunction with our 2022 annual audited consolidated financial statements and accompanying notes included in our Annual Report on Form 10-K filed with the SEC on February 23, 2023. Our interim financial statements reflect all normal recurring adjustments necessary, in our opinion, to state fairly our financial position and results of operations for the reported periods. Amounts reported for interim periods may not be indicative of a full year period because of our continual growth, seasonal fluctuations in demand for power, timing of maintenance and other expenditures, changes in interest expense and other factors.

Our interim financial statements include our accounts and those of our subsidiaries in which we have a controlling financial interest. In accordance with the provisions of the Financial Accounting Standards Board ("FASB") Accounting Standards Codification ("ASC") 810, Consolidation, we consolidate any VIE of which we are the primary beneficiary. We form VIEs with our investors in the ordinary course of business to facilitate the funding and monetization of certain attributes associated with our solar energy systems. The typical condition for a controlling financial interest is holding a majority of the voting interests of an entity. However, a controlling financial interest may also exist in entities, such as VIEs, through arrangements that do not involve holding a majority of the voting interests. A primary beneficiary is defined as the party that has (a) the power to direct the activities of a VIE that most significantly impact the VIE's economic performance and (b) the obligation to absorb losses or receive benefits from the VIE that could potentially be significant to the VIE. We do not

consolidate a VIE in which we have a majority ownership interest when we are not considered the primary beneficiary. We have considered the provisions within the contractual arrangements that grant us power to manage and make decisions that affect the operation of our VIEs, including determining the solar energy systems contributed to the VIEs, and the installation, operation and maintenance of the solar energy systems. We consider the rights granted to the other investors under the contractual arrangements to be more protective in nature rather than substantive participating rights. As such, we have determined we are the primary beneficiary of our VIEs and evaluate our relationships with our VIEs on an ongoing basis to determine whether we continue to be the primary beneficiary. We have eliminated all intercompany transactions in consolidation.

Revisions

We have revised our previously issued interim financial statements to correct immaterial errors pertaining to our interest rate derivative financial instruments, specifically the credit valuation adjustment to account for the counterparties' credit risk. We originally did not record the estimated reduction to the derivative assets related to the credit valuation adjustment as of March 31, 2022 and June 30, 2022. These immaterial errors impacted our consolidated balance sheets, consolidated statements of operations, consolidated statements of cash flows and consolidated statements of redeemable noncontrolling interests and equity. The following tables present the impact of these revisions on the interim financial statements:

Consolidated Balance Sheets


	As of March 31, 2022
	As Previously Reported		Revisions		As Revised
	(in thousands)
Other assets	$	662,456	$	(1,475)	$	660,981
Accumulated deficit	$	(423,529)	$	(1,475)	$	(425,004)


	As of June 30, 2022
	As Previously Reported		Revisions		As Revised
	(in thousands)
Other assets	$	802,862	$	(5,609)	$	797,253
Accumulated deficit	$	(377,217)	$	(5,609)	$	(382,826)

Consolidated Statements of Operations


	Three Months Ended March 31, 2022
	As Previously Reported		Revisions		As Revised
	(in thousands)
Interest expense, net	$	(2,490)	$	1,475	$	(1,015)
Loss before income tax	$	(20,629)	$	(1,475)	$	(22,104)
Net loss	$	(20,629)	$	(1,475)	$	(22,104)
Net loss attributable to stockholders	$	(33,583)	$	(1,475)	$	(35,058)
Net loss per share attributable to stockholders—basic and diluted	$	(0.30)	$	(0.01)	$	(0.31)


	Three Months Ended June 30, 2022						Six Months Ended June 30, 2022
	As Previously Reported		Revisions		As Revised		As Previously Reported		Revisions		As Revised
	(in thousands)
Interest expense, net	$	20,437	$	4,134	$	24,571	$	17,947	$	5,609	$	23,556
Loss before income tax	$	(9,697)	$	(4,134)	$	(13,831)	$	(30,326)	$	(5,609)	$	(35,935)
Net loss	$	(9,697)	$	(4,134)	$	(13,831)	$	(30,326)	$	(5,609)	$	(35,935)
Net loss attributable to stockholders	$	(37,003)	$	(4,134)	$	(41,137)	$	(70,586)	$	(5,609)	$	(76,195)
Net loss per share attributable to stockholders—basic and diluted	$	(0.32)	$	(0.04)	$	(0.36)	$	(0.62)	$	(0.05)	$	(0.67)

Consolidated Statements of Cash Flows


	Three Months Ended March 31, 2022
	As Previously Reported		Revisions		As Revised
	(in thousands)
Net loss	$	(20,629)	$	(1,475)	$	(22,104)
Unrealized gain on derivatives	$	(35,349)	$	1,475	$	(33,874)
Net cash used in operating activities	$	(92,129)	$	—	$	(92,129)


	Six Months Ended June 30, 2022
	As Previously Reported		Revisions		As Revised
	(in thousands)
Net loss	$	(30,326)	$	(5,609)	$	(35,935)
Unrealized gain on derivatives	$	(6,626)	$	5,609	$	(1,017)
Net cash used in operating activities	$	(162,343)	$	—	$	(162,343)

Consolidated Statements of Redeemable Noncontrolling Interests and Equity


	Accumulated Deficit
	As Previously Reported		Revisions		As Revised
	(in thousands)
December 31, 2021	$	(459,715)	$	—	$	(459,715)
Net loss attributable to stockholders	(33,583)		(1,475)		(35,058)
Equity in subsidiaries attributable to parent	69,769		—		69,769
March 31, 2022	(423,529)		(1,475)		(425,004)
Net loss attributable to stockholders	(37,003)		(4,134)		(41,137)
Equity in subsidiaries attributable to parent	83,316		—		83,316
Other, net	(1)		—		(1)
June 30, 2022	$	(377,217)	$	(5,609)	$	(382,826)

Significant Accounting Policies

6 Months Ended

Jun. 30, 2023

Accounting Policies [Abstract]

Significant Accounting Policies

Included below are updates to significant accounting policies disclosed in our 2022 annual audited consolidated financial statements.

Use of Estimates

The application of GAAP in the preparation of the interim financial statements requires us to make estimates and assumptions that affect the amounts reported in the interim financial statements and accompanying notes. We base our estimates on historical experience and on various other assumptions believed to be reasonable, the results of which form the basis for making judgments about the carrying values of assets and liabilities. Actual results could differ materially from those estimates.

Accounts Receivable

Accounts Receivable—Trade. Accounts receivable—trade primarily represents trade receivables from customers that are generally collected in the subsequent month. Accounts receivable—trade is recorded net of an allowance for credit losses, which is based on our assessment of the collectability of customer accounts based on the best available data at the time. We review the allowance by considering factors such as historical experience, customer credit rating, contractual term, aging category and current economic conditions that may affect a customer's ability to pay to identify customers with potential disputes or collection issues. We write off accounts receivable when we deem them uncollectible. The following table presents

the changes in the allowance for credit losses recorded against accounts receivable—trade, net in the unaudited condensed consolidated balance sheets:


	Three Months Ended June 30,				Six Months Ended June 30,
	2023		2022		2023		2022
	(in thousands)
Balance at beginning of period	$	1,887	$	1,065	$	1,676	$	1,044
Provision for current expected credit losses	1,177		614		2,105		1,089
Write off of uncollectible accounts	(969)		(546)		(1,748)		(1,052)
Recoveries	48		65		110		117

Balance at end of period	$	2,143	$	1,198	$	2,143	$	1,198

Accounts Receivable—Other. Accounts receivable—other primarily represents receivables from our dealers or other parties related to the sale of inventory and the use of inventory procured by us.

Inventory

Inventory is stated at the lower of cost and net realizable value using the first-in, first-out method. Inventory primarily represents (a) raw materials, such as energy storage systems, photovoltaic modules, inverters, meters and modems, (b) homebuilder construction in progress and (c) other associated equipment purchased. These materials are typically procured by us and used by our dealers, sold to our dealers or held for use as original parts on new solar energy systems or replacement parts on existing solar energy systems. We remove these items from inventory and record the transaction in typically one of these manners: (a) expense to operations and maintenance expense when installed as a replacement part for a solar energy system, (b) recognize in accounts receivable—other when procured by us and used by our dealers, (c) expense to cost of revenue—inventory sales if sold directly to a dealer or other party, (d) capitalize to property and equipment when installed on an existing home or business or (e) capitalize to property and equipment when placed in service under the homebuilder program. We periodically evaluate our inventory for unusable and obsolete items based on assumptions about future demand and market conditions. Based on this evaluation, provisions are made to write inventory down to net realizable value. The following table presents the detail of inventory as recorded in other current assets in the unaudited condensed consolidated balance sheets:


	As of June 30, 2023		As of December 31, 2022


	(in thousands)
Energy storage systems and components	$	109,800	$	74,968
Homebuilder construction in progress	44,555		43,116
Modules and inverters	23,362		32,798

Meters and modems	1,492		1,166
Other	—		65
Total	$	179,209	$	152,113

Fair Value of Financial Instruments

Fair value is an exit price representing the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. As such, fair value is a market-based measurement that should be determined based on assumptions market participants would use in pricing an asset or a liability. Valuation techniques used to measure fair value must maximize the use of observable inputs and minimize the use of unobservable inputs. ASC 820 establishes a three-tier fair value hierarchy, which prioritizes inputs that may be used to measure fair value as follows:

•Level 1—Observable inputs that reflect unadjusted quoted market prices in active markets for identical assets or liabilities that are accessible at the measurement date.

•Level 2—Observable inputs other than Level 1 prices, such as quoted market prices for similar assets or liabilities in active markets, quoted market prices in markets that are not active or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.

•Level 3—Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities.

In certain cases, the inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, the level in the fair value hierarchy must be determined based on the lowest level input that is significant to the fair value measurement. An assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment and consideration of factors specific to the asset or liability. Our financial instruments include cash, cash equivalents, accounts receivable, customer notes receivable, investments in solar receivables, accounts payable, accrued expenses, long-term debt, interest rate swaps and caps and contingent consideration. The carrying values of accounts receivable, accounts payable and accrued expenses approximate the fair values due to the fact that they are short-term in nature (Level 1). We estimate the fair value of our customer notes receivable based on interest rates currently offered under the loan program with similar maturities and terms (Level 3). We estimate the fair value of our investments in solar receivables based on a discounted cash flows model that utilizes market data related to solar irradiance, production factors by region and projected electric utility rates in order to build up revenue projections (Level 3). In addition, lease-related revenue and maintenance and service costs were supported through the use of available market studies and data. We estimate the fair value of our fixed-rate long-term debt based on an analysis of debt with similar book values, maturities and required market yields based on current interest rates (Level 3). We determine the fair values of the interest rate derivative transactions based on a discounted cash flow method using contractual terms of the transactions and counterparty credit risk as key inputs. The floating interest rate is based on observable rates consistent with the frequency of the interest cash flows (Level 2). For contingent consideration, we estimate the fair value of the installation earnout using the Monte Carlo model based on the forecasted placements for the installations and the microgrid earnout using a scenario-based methodology based on the probabilities of the microgrid earnout, both using Level 3 inputs. See Note 6, Customer Notes Receivable, Note 7, Long-Term Debt and Note 8, Derivative Instruments.

The following tables present our financial instruments measured at fair value on a recurring basis as of June 30, 2023 and December 31, 2022:


	As of June 30, 2023
	Total		Level 1		Level 2		Level 3
	(in thousands)
Financial assets:
Investments in solar receivables	$	68,362	$	—	$	—	$	68,362
Derivative assets	122,271		—		122,271		—
Total	$	190,633	$	—	$	122,271	$	68,362

Financial liabilities:
Contingent consideration	$	22,243	$	—	$	—	$	22,243

Total	$	22,243	$	—	$	—	$	22,243


	As of December 31, 2022
	Total		Level 1		Level 2		Level 3
	(in thousands)
Financial assets:
Investments in solar receivables	$	72,171	$	—	$	—	$	72,171
Derivative assets	112,712		—		112,712		—
Total	$	184,883	$	—	$	112,712	$	72,171

Financial liabilities:
Contingent consideration	$	26,787	$	—	$	—	$	26,787

Total	$	26,787	$	—	$	—	$	26,787

Changes in the fair value of our investments in solar receivables are included in other operating expense/income in the consolidated statements of operations. The following table summarizes the change in the fair value of our financial assets

accounted for at fair value on a recurring basis using Level 3 inputs as recorded in other current assets and other assets (see Note 4, Detail of Certain Balance Sheet Captions) in the unaudited condensed consolidated balance sheets:


	Six Months Ended June 30,
	2023		2022
	(in thousands)
Balance at beginning of period	$	72,171	$	82,658
Additions	969		—
Settlements	(5,145)		(4,412)
Gain (loss) recognized in earnings	367		(3,376)

Balance at end of period	$	68,362	$	74,870

Changes in the fair value of our contingent consideration are included in other operating expense/income in the consolidated statements of operations. The following table summarizes the change in the fair value of our financial liabilities accounted for at fair value on a recurring basis using Level 3 inputs as recorded in other long-term liabilities in the unaudited condensed consolidated balance sheets:


	Six Months Ended June 30,
	2023		2022
	(in thousands)
Balance at beginning of period	$	26,787	$	67,895

Settlements	(10,831)		(16,014)
(Gain) loss recognized in earnings	6,287		(17,821)

Balance at end of period	$	22,243	$	34,060

The following table summarizes the significant unobservable inputs used in the valuation of our liabilities as of June 30, 2023 using Level 3 inputs:

Unobservable
Input

Weighted
Average

Liabilities:

Contingent consideration - installation earnout

Volatility

35.00%

Revenue risk premium

15.30%

Risk-free discount rate

5.00%

Contingent consideration - microgrid earnout

Probability of success

25.00%

Risk-free discount rate

5.00%

Significant increases or decreases in the volatility, revenue risk premium, probability of success or risk-free discount rate in isolation could result in a significantly higher or lower fair value measurement.

Revenue

The following table presents the detail of revenue as recorded in the unaudited condensed consolidated statements of operations:


	Three Months Ended June 30,				Six Months Ended June 30,
	2023		2022		2023		2022
	(in thousands)
PPA revenue	$	39,155	$	31,159	$	60,901	$	52,344
Lease revenue	34,159		24,025		65,502		45,805
Inventory sales revenue	26,492		54,245		86,406		54,245
Service revenue	19,981		1,726		35,959		2,715
Solar renewable energy certificate revenue	15,055		14,687		22,846		20,931
Cash sales revenue	21,724		15,414		38,543		26,762
Loan revenue	8,112		4,194		15,255		7,570
Other revenue	1,699		1,562		2,661		2,362
Total	$	166,377	$	147,012	$	328,073	$	212,734

We recognize revenue from contracts with customers as we satisfy our performance obligations at a transaction price reflecting an amount of consideration based upon an estimated rate of return, net of cash incentives. We express this rate of return as the solar rate per kilowatt hour ("kWh") in the customer contract. The amount of revenue we recognize does not equal customer cash payments because we satisfy performance obligations ahead of cash receipt or evenly as we provide continuous access on a stand-ready basis to the solar energy system. We reflect the differences between revenue recognition and cash payments received in accounts receivable, other assets or deferred revenue, as appropriate. Revenue allocated to remaining performance obligations represents contracted revenue we have not yet recognized and includes deferred revenue as well as amounts that will be invoiced and recognized as revenue in future periods. Contracted but not yet recognized revenue was approximately $4.1 billion as of June 30, 2023, of which we expect to recognize approximately 3% over the next 12 months. We do not expect the annual recognition to vary significantly over approximately the next 20 years as the vast majority of existing solar service agreements have at least 20 years remaining, given the average age of the fleet of solar energy systems under contract is less than four years.

Certain customers may receive cash incentives. We defer recognition of the payment of these cash incentives and recognize them over the life of the contract as a reduction to revenue. The deferred payment is recorded in other assets for customers who receive the cash incentives under our lease and PPA agreements, and as a contra-liability in other long-term liabilities for customers who receive the cash incentives under our loan agreements.

PPAs. Customers purchase electricity from us under PPAs. Pursuant to ASC 606, we recognize revenue based upon the amount of electricity delivered as determined by remote monitoring equipment at solar rates specified under the PPAs. All customers must pass our credit evaluation process. The PPAs generally have a term of 20 or 25 years with an opportunity for customers to renew for up to an additional 10 years, via two five-year or one 10-year renewal options.

Leases. We are the lessor under lease agreements for solar energy systems and energy storage systems, which do not meet the definition of a lease under ASC 842 and are accounted for as contracts with customers under ASC 606. We recognize revenue on a straight-line basis over the contract term as we satisfy our obligation to provide continuous access to the solar energy system. All customers must pass our credit evaluation process. The lease agreements generally have a term of 20 or 25 years with an opportunity for customers to renew for up to an additional 10 years, via two five-year or one 10-year renewal options.

In most cases, we provide customers under our lease agreements a performance guarantee that each solar energy system will achieve a certain specified minimum solar energy production output, which is a significant proportion of its expected output. The specified minimum solar energy production output may not be achieved due to natural fluctuations in the weather or equipment failures from exposure and wear and tear outside of our control, among other factors. We determine the amount of the guaranteed output based on a number of different factors, including: (a) the specific site information related to the tilt of the panels, azimuth (a horizontal angle measured clockwise in degrees from a reference direction) of the panels, size of the system, and shading on site; (b) the calculated amount of available irradiance (amount of energy for a given flat surface facing a specific

direction) based on historical average weather data and (c) the calculated amount of energy output of the solar energy system. While actual irradiance levels can significantly change year over year due to natural fluctuations in the weather, we expect the levels to average out over the term of a lease and to approximate the levels used in determining the amount of the performance guarantee. Generally, weather fluctuations are the most likely reason a solar energy system may not achieve a certain specified minimum solar energy production output.

If the solar energy system does not produce the guaranteed production amount, we are required to refund a portion of the previously remitted customer payments, where the repayment is calculated as the product of (a) the shortfall production amount and (b) the dollar amount (guaranteed rate) per kWh that is fixed throughout the term of the contract. These remittances of a customer's payments, if needed, are payable as early as the first anniversary of the solar energy system's placed in service date and then every annual period thereafter. See Note 14, Commitments and Contingencies.

Inventory Sales. Inventory sales revenue represents revenue from the direct sale of inventory to our dealers or other parties. We recognize the related revenue under ASC 606 upon shipment. Shipping and handling costs are included in cost of revenue—inventory sales in the consolidated statements of operations.

Service Revenue. Service revenue includes revenue from the direct sale of solar energy systems and energy storage systems to customers with financing provided by us and sales of service plans and repair services. We recognize revenue from the direct sale of energy storage systems in the period in which the storage components are placed in service. Service plans are available to customers whose solar energy system was not originally sold by Sunnova. We recognize revenue from service plan contracts on a straight-line basis over the life of the contract, which is typically 10 years. We recognize revenue from repair services in the period in which the service was performed.

Solar Renewable Energy Certificates. Each solar renewable energy certificate ("SREC") represents the environmental benefit of one megawatt hour (1,000 kWh) generated by a solar energy system. SRECs can be sold separate from the actual electricity generated by the renewable-based generation source. We account for the SRECs we generate from our solar energy systems as governmental incentives with no costs incurred to obtain them and do not consider those SRECs output of the underlying solar energy systems. We classify these SRECs as inventory held until sold and delivered to third parties. As we did not incur costs to obtain these governmental incentives, the inventory carrying value for the SRECs was $0 as of June 30, 2023 and December 31, 2022. We enter into economic hedges related to expected production of SRECs through forward contracts. While these fixed price forward contracts serve as an economic hedge against spot price fluctuations for the SRECs, the contracts do not qualify for hedge accounting and are not designated as cash flow hedges or fair value hedges. The contracts require us to physically deliver the SRECs upon settlement. We recognize the related revenue under ASC 606 upon satisfaction of the performance obligation to transfer the SRECs to the stated counterparty. Payments are typically received within one month of transferring the SREC to the counterparty. The costs related to the sales of SRECs are generally limited to broker fees (recorded in cost of revenue—other), which are only paid in connection with certain transactions. In certain circumstances we are required to purchase SRECs on the open market to fulfill minimum delivery requirements under our forward contracts.

Cash Sales. Cash sales revenue represents revenue from a customer's purchase of a solar energy system from us typically when purchasing a new home. We recognize the related revenue under ASC 606 upon verification of the home closing.

Loans. See discussion of loan revenue in the "Loans" section below.

Other Revenue. Other revenue includes certain state and utility incentives. We recognize revenue from state and utility incentives in the periods in which they are earned.

Loans

We offer a loan program, under which the customer finances the purchase of a solar energy system, energy storage system and/or accessory through a solar service agreement, typically for a term of 10, 15 or 25 years. We recognize cash payments received from customers on a monthly basis under our loan program (a) as interest income, to the extent attributable to earned interest on the contract that financed the customer's purchase; (b) as a reduction of a note receivable on the balance sheet, to the extent attributable to a return of principal (whether scheduled or prepaid) on the contract that financed the customer's purchase; and (c) as revenue, to the extent attributable to payments for operations and maintenance services provided by us. To qualify for the loan program, a customer must pass our credit evaluation process, which requires the customer to have a minimum FICO® score of 600 to 710 depending on certain circumstances, and we secure the loans with the solar energy systems, energy storage systems or accessories financed. The credit evaluation process is performed once for each customer at the time the customer is entering into the solar service agreement with us.

Our investments in solar energy systems, energy storage systems and accessories related to the loan program that are not yet placed in service are recorded in other assets in the consolidated balance sheets and are transferred to customer notes receivable upon being placed in service. Customer notes receivable are recorded at amortized cost, net of an allowance for credit losses (as described below), in other current assets and customer notes receivable in the consolidated balance sheets. Accrued interest receivable related to our customer notes receivable is recorded in accounts receivable—trade, net in the consolidated balance sheets. Interest income from customer notes receivable is recorded in interest income in the consolidated statements of operations. The amortized cost of our customer notes receivable is equal to the principal balance of customer notes receivable outstanding and does not include accrued interest receivable. Customer notes receivable continue to accrue interest until they are written off against the allowance, which occurs when the balance is 180 days or more past due unless the balance is in the process of collection. Customer notes receivable are considered past due one day after the due date based on the contractual terms of the loan agreement. In all cases, customer notes receivable balances are placed on a nonaccrual status or written off at an earlier date when they are deemed uncollectible. Expected recoveries do not exceed the aggregate of amounts previously written off and expected to be written off. Accrued interest receivable for customer notes receivable placed on a nonaccrual status is recorded as a reduction to interest income. Interest received on such customer notes receivable is accounted for on a cash basis until the customer notes receivable qualifies for the return to accrual status. Customer notes receivable are returned to accrual status when there is no longer any principal or interest amounts past due and future payments are reasonably assured.

The allowance for credit losses is deducted from the customer notes receivable amortized cost to present the net amount expected to be collected. It is measured on a collective (pool) basis when similar risk characteristics (such as financial asset type, customer credit rating, contractual term and vintage) exist. In determining the allowance for credit losses, we identify customers with potential disputes or collection issues and consider our historical level of credit losses and current economic trends that might impact the level of future credit losses. Adjustments to historical loss information are made for differences in current loan-specific risk characteristics, such as differences in underwriting standards. Expected credit losses are estimated over the contractual term of the loan agreements based on the best available data at the time and adjusted for expected prepayments when appropriate. The contractual term excludes expected extensions, renewals and modifications unless either of the following applies: (a) we have a reasonable expectation at the reporting date that a troubled debt restructuring will be executed with an individual customer or (b) the extension or renewal options are included in the original or modified contract at the reporting date and are not unconditionally cancelable by us. Expected credit losses are recorded in general and administrative expense in the consolidated statements of operations. See Note 6, Customer Notes Receivable.

Deferred Revenue

Deferred revenue consists of amounts for which the criteria for revenue recognition have not yet been met and includes (a) payments for unfulfilled performance obligations that will be recognized on a straight-line basis over the remaining term of the respective solar service agreements, net of any cash incentives earned by the customers, (b) down payments and partial or full prepayments from customers and (c) differences due to the timing of energy production versus billing for certain types of PPAs. Deferred revenue was $297.8 million as of December 31, 2021. The following table presents the detail of deferred revenue as recorded in other current liabilities and other long-term liabilities in the unaudited condensed consolidated balance sheets:


	As of June 30, 2023		As of December 31, 2022


	(in thousands)
Loans	$	783,789	$	586,128
PPAs and leases	30,235		24,893
Solar receivables	4,471		4,602

Other	11		—
Total (1)	$	818,506	$	615,623

(1) Of this amount, $41.3 million and $30.2 million is recorded in other current liabilities as of June 30, 2023 and December 31, 2022, respectively.

During the six months ended June 30, 2023 and 2022, we recognized revenue of $12.0 million and $8.1 million, respectively, from amounts recorded in deferred revenue at the beginning of the respective years.

Self-Insurance

In January 2023, we changed our health insurance policy for qualifying employees in the U.S. from a fully-insured policy to a self-insured policy in order to administer insurance coverage to our employees at a lower cost to us. The change in insurance policy did not have a significant impact on our consolidated financial statements and related disclosures. Under the self-insured policy, we maintain stop-loss coverage from a third party that limits our exposure to large claims. We record a liability associated with these benefits that includes an estimate of both claims filed and losses incurred but not yet reported based on historical claims experience. In estimating this accrual, we utilize a third-party actuary to estimate a range of expected losses, which are based on an analysis of historical data. Assumptions are monitored and adjusted when warranted by changing circumstances. We record our liability for estimated losses under our self-insured policy in accrued liabilities in the consolidated balance sheets. As of June 30, 2023, our liability for self-insured claims was $3.5 million, which represents our best estimate of the future cost of claims incurred as of that date. We believe we have adequate reserves for these claims as of June 30, 2023; however, the actual value of such claims could be significantly affected if future occurrences and claims differ from these assumptions.

New Accounting Guidance

New accounting pronouncements are issued by the FASB or other standard setting bodies and are adopted as of the specified effective date.

In March 2022, the FASB issued Accounting Standards Update ("ASU") No. 2022-02, Financial Instruments—Credit Losses: Troubled Debt Restructurings and Vintage Disclosures, to eliminate the accounting guidance for troubled debt restructurings while enhancing disclosure requirements for certain loan refinancings and restructurings by creditors when a borrower is experiencing financial difficulty. This ASU is effective for annual and interim reporting periods beginning in January 2023. We adopted this ASU in January 2023 and determined it did not have a significant impact on our consolidated financial statements and related disclosures.

Property and Equipment

6 Months Ended

Jun. 30, 2023

Property, Plant and Equipment [Abstract]

Property and Equipment

The following table presents the detail of property and equipment, net as recorded in the unaudited condensed consolidated balance sheets:


	Useful Lives	As of June 30, 2023		As of December 31, 2022


	(in years)	(in thousands)
Solar energy systems and energy storage systems	35	$	4,295,288	$	3,719,727
Construction in progress		528,008		329,893
Asset retirement obligations	30	64,636		57,063
Information technology systems	3	84,871		72,797
Computers and equipment	3-5	6,371		4,976
Leasehold improvements	3-6	6,015		5,558
Furniture and fixtures	7	1,172		1,172
Vehicles	4-5	1,640		1,640
Other	5-6	158		157
Property and equipment, gross		4,988,159		4,192,983
Less: accumulated depreciation		(475,649)		(408,182)
Property and equipment, net		$	4,512,510	$	3,784,801

The amounts included in the above table for solar energy systems and energy storage systems and substantially all the construction in progress relate to our customer contracts (including PPAs and leases). These assets had accumulated depreciation of $418.2 million and $360.1 million as of June 30, 2023 and December 31, 2022, respectively.

Detail of Certain Balance Sheet Captions

6 Months Ended

Jun. 30, 2023

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Detail of Certain Balance Sheet Captions

The following table presents the detail of other current assets as recorded in the unaudited condensed consolidated balance sheets:


	As of June 30, 2023		As of December 31, 2022


	(in thousands)
Inventory	$	179,209	$	152,113
Current portion of customer notes receivable	150,966		114,910
Restricted cash	37,825		51,733
Prepaid assets	29,713		17,492
Deferred receivables	10,388		7,392
Current portion of investments in solar receivables	7,804		7,107


Other	685		553
Total	$	416,590	$	351,300

The following table presents the detail of other assets as recorded in the unaudited condensed consolidated balance sheets:


	As of June 30, 2023		As of December 31, 2022


	(in thousands)
Construction in progress - customer notes receivable	$	247,588	$	382,611
Restricted cash	180,718		133,584
Exclusivity and other bonus arrangements with dealers, net	173,799		121,313
Investments in solar receivables	60,558		65,064
Straight-line revenue adjustment, net	57,803		53,086
Other	237,312		206,233
Total	$	957,778	$	961,891

The following table presents the detail of other current liabilities as recorded in the unaudited condensed consolidated balance sheets:


	As of June 30, 2023		As of December 31, 2022


	(in thousands)
Interest payable	$	42,910	$	35,258
Deferred revenue	41,277		30,172
Current portion of operating and finance lease liability	3,455		3,247
Current portion of performance guarantee obligations	2,335		2,495
Other	4,065		334
Total	$	94,042	$	71,506

Asset Retirement Obligations ("ARO")

6 Months Ended

Jun. 30, 2023

Asset Retirement Obligation Disclosure [Abstract]

Asset Retirement Obligations ("ARO")

Asset Retirement Obligations ("ARO")AROs consist primarily of costs to remove solar energy system assets and costs to restore the solar energy system sites to the original condition, which we estimate based on current market rates. For each solar energy system, we recognize the fair value of the ARO as a liability and capitalize that cost as part of the cost basis of the related solar energy system. The related assets are depreciated on a straight-line basis over 30 years, which is the estimated average time a solar energy system will be installed in a location before being removed, and the related liabilities are accreted to the full value over the same period of time. We revise our estimated future liabilities based on recent actual experiences, including third party cost estimates, average size of solar energy systems and inflation rates, which we evaluate at least annually. Changes in our estimated future liabilities

are recorded as either a reduction or addition in the carrying amount of the remaining unamortized asset and the ARO and either decrease or increase our depreciation and accretion expense amounts prospectively. The following table presents the changes in AROs as recorded in other long-term liabilities in the unaudited condensed consolidated balance sheets:



	Six Months Ended June 30,
	2023		2022
	(in thousands)
Balance at beginning of period	$	69,869	$	54,396
Additional obligations incurred	7,604		5,390
Accretion expense	2,234		1,735

Other	(44)		(58)
Balance at end of period	$	79,663	$	61,463

Customer Notes Receivable

6 Months Ended

Jun. 30, 2023

Receivables [Abstract]

Customer Notes Receivable

We offer a loan program, under which the customer finances the purchase of a solar energy system, energy storage system and/or accessory through a solar service agreement for a term of 10, 15 or 25 years. The following table presents the detail of customer notes receivable as recorded in the unaudited condensed consolidated balance sheets and the corresponding fair values:


	As of June 30, 2023		As of December 31, 2022


	(in thousands)
Customer notes receivable	$	3,481,602	$	2,662,307
Allowance for credit losses	(102,337)		(81,248)
Customer notes receivable, net	$	3,379,265	$	2,581,059
Estimated fair value, net	$	3,316,523	$	2,554,948

The following table presents the changes in the allowance for credit losses related to customer notes receivable as recorded in the unaudited condensed consolidated balance sheets:


	Three Months Ended June 30,				Six Months Ended June 30,
	2023		2022		2023		2022
	(in thousands)
Balance at beginning of period	$	91,459	$	47,818	$	81,248	$	41,138
Provision for current expected credit losses	10,878		9,225		21,089		15,869

Recoveries	—		—		—		36

Balance at end of period	$	102,337	$	57,043	$	102,337	$	57,043

As of June 30, 2023 and December 31, 2022, we invested $247.6 million and $382.6 million, respectively, in loan solar energy systems, energy storage systems and accessories not yet placed in service. For the three months ended June 30, 2023 and 2022, interest income related to our customer notes receivable was $23.1 million and $13.1 million, respectively. For the six months ended June 30, 2023 and 2022, interest income related to our customer notes receivable was $43.2 million and $23.9 million, respectively. As of June 30, 2023 and December 31, 2022, accrued interest receivable related to our customer notes receivable was $23.2 million and $10.2 million, respectively. As of June 30, 2023 and December 31, 2022, there was $19.8 million and $12.6 million, respectively, of customer notes receivable not accruing interest and there was $436,000 and $278,000, respectively, of allowance recorded for loans on nonaccrual status. For the three months ended June 30, 2023 and 2022, interest income of $0 was recognized for loans on nonaccrual status and accrued interest receivable of $4,000 was written off by reversing interest income. For the six months ended June 30, 2023 and 2022, interest income of $0 was recognized for loans on nonaccrual status and accrued interest receivable of $17,000 and $497,000, respectively, was written off by reversing interest income.

We consider the performance of our customer notes receivable portfolio and its impact on our allowance for credit losses. We also evaluate the credit quality based on the aging status and payment activity. The following table presents the aging of the amortized cost of customer notes receivable:


	As of June 30, 2023		As of December 31, 2022


	(in thousands)
1-90 days past due	$	116,075	$	91,668
91-180 days past due	26,263		16,859
Greater than 180 days past due	48,912		14,504
Total past due	191,250		123,031
Not past due	3,290,352		2,539,276
Total	$	3,481,602	$	2,662,307

As of June 30, 2023 and December 31, 2022, the amortized cost of our customer notes receivable more than 90 days past due but not on nonaccrual status was $55.4 million and $31.4 million, respectively. The following table presents the amortized cost by origination year of our customer notes receivable based on payment activity:


	Amortized Cost by Origination Year
	2023		2022		2021		2020		2019		Prior		Total
	(in thousands)
Payment performance:
Performing	$	882,708	$	1,384,684	$	714,073	$	218,295	$	110,807	$	122,123	$	3,432,690
Nonperforming (1)	—		19,007		13,534		4,224		4,388		7,759		48,912
Total	$	882,708	$	1,403,691	$	727,607	$	222,519	$	115,195	$	129,882	$	3,481,602

(1) A nonperforming loan is a loan in which the customer is in default and has not made any scheduled principal or interest payments for 181 days or more.

Long-Term Debt

6 Months Ended

Jun. 30, 2023

Debt Disclosure [Abstract]

Long-Term Debt

Our subsidiaries with long-term debt include Sunnova Energy Corporation, Sunnova EZ-Own Portfolio, LLC ("EZOP"), Sunnova Helios II Issuer, LLC ("HELII"), Sunnova RAYS I Issuer, LLC ("RAYSI"), Sunnova Helios III Issuer, LLC ("HELIII"), Sunnova TEP Holdings, LLC ("TEPH"), Sunnova Sol Issuer, LLC ("SOLI"), Sunnova Helios IV Issuer, LLC ("HELIV"), Sunnova Asset Portfolio 8, LLC ("AP8"), Sunnova Sol II Issuer, LLC ("SOLII"), Sunnova Helios V Issuer, LLC ("HELV"), Sunnova Sol III Issuer, LLC ("SOLIII"), Sunnova Helios VI Issuer, LLC ("HELVI"), Sunnova Helios VII Issuer, LLC ("HELVII"), Sunnova Helios VIII Issuer, LLC ("HELVIII"), Sunnova Sol IV Issuer, LLC ("SOLIV"), Sunnova Helios IX Issuer, LLC ("HELIX"), Sunnova Helios X Issuer, LLC ("HELX"), Sunnova Inventory Supply, LLC ("IS"), Sunnova Sol V Issuer, LLC ("SOLV") and Sunnova Helios XI Issuer, LLC ("HELXI"). The following table presents the detail of long-term debt, net as recorded in the unaudited condensed consolidated balance sheets:


	Six Months Ended June 30, 2023 Weighted Average Effective Interest Rates		As of June 30, 2023				Year Ended December 31, 2022 Weighted Average Effective Interest Rates		As of December 31, 2022
			Long-term		Current				Long-term		Current
	(in thousands, except interest rates)
SEI
0.25% convertible senior notes	0.71	%	$	575,000	$	—	0.71	%	$	575,000	$	—
2.625% convertible senior notes	3.05	%	600,000		—		3.11	%	600,000		—
Debt discount, net			(21,762)		—				(24,324)		—
Deferred financing costs, net			(856)		—				(920)		—
Sunnova Energy Corporation
Note payable	8.34	%	—		4,924				—		—
5.875% senior notes	6.59	%	400,000		—		6.52	%	400,000		—
Debt discount, net			(3,141)		—				(3,767)		—


Deferred financing costs, net			(6,349)	—			(7,339)	—
EZOP
Revolving credit facility	8.51	%	721,000	—	5.10	%	500,000	—
Debt discount, net			(393)	—			(532)	—
HELII
Solar asset-backed notes	5.69	%	199,339	8,985	5.69	%	204,016	8,632
Debt discount, net			(27)	—			(30)	—
Deferred financing costs, net			(3,255)	—			(3,591)	—
RAYSI
Solar asset-backed notes	5.62	%	102,396	11,432	5.54	%	105,878	9,957
Debt discount, net			(842)	—			(960)	—
Deferred financing costs, net			(3,225)	—			(3,451)	—
HELIII
Solar loan-backed notes	4.47	%	90,342	10,208	4.42	%	94,247	10,438
Debt discount, net			(1,393)	—			(1,536)	—
Deferred financing costs, net			(1,337)	—			(1,474)	—
TEPH
Revolving credit facility	10.03	%	473,840	—	7.74	%	425,700	—
Debt discount, net			(1,510)	—			(2,043)	—
SOLI
Solar asset-backed notes	3.95	%	342,701	14,807	3.92	%	348,962	16,063
Debt discount, net			(81)	—			(87)	—
Deferred financing costs, net			(6,302)	—			(6,827)	—
HELIV
Solar loan-backed notes	4.19	%	101,472	11,169	4.15	%	105,655	11,494
Debt discount, net			(488)	—			(564)	—
Deferred financing costs, net			(2,279)	—			(2,609)	—
AP8
Revolving credit facility	9.61	%	177,000	—	20.52	%	74,535	465
SOLII
Solar asset-backed notes	3.44	%	226,853	7,003	3.41	%	232,276	6,409
Debt discount, net			(60)	—			(64)	—
Deferred financing costs, net			(4,263)	—			(4,576)	—
HELV
Solar loan-backed notes	2.49	%	139,219	13,925	2.47	%	143,940	14,367
Debt discount, net			(614)	—			(690)	—
Deferred financing costs, net			(2,378)	—			(2,661)	—
SOLIII
Solar asset-backed notes	2.83	%	266,311	16,776	2.78	%	275,779	16,632
Debt discount, net			(109)	—			(117)	—
Deferred financing costs, net			(5,247)	—			(5,616)	—
HELVI
Solar loan-backed notes	2.12	%	165,314	13,947	2.08	%	167,669	16,770
Debt discount, net			(36)	—			(40)	—
Deferred financing costs, net			(2,629)	—			(2,909)	—
HELVII
Solar loan-backed notes	2.53	%	125,963	11,786	2.50	%	126,856	16,058
Debt discount, net			(35)	—			(38)	—
Deferred financing costs, net			(2,000)	—			(2,193)	—
HELVIII
Solar loan-backed notes	3.64	%	245,888	25,490	3.54	%	250,014	31,099
Debt discount, net			(4,812)	—			(5,267)	—
Deferred financing costs, net			(3,751)	—			(4,080)	—
SOLIV
Solar asset-backed notes	5.94	%	332,915	8,240	5.76	%	338,251	8,080


Debt discount, net			(10,324)		—				(11,190)		—
Deferred financing costs, net			(7,395)		—				(7,996)		—
HELIX
Solar loan-backed notes	5.68	%	191,508		27,083		5.46	%	193,837		29,632
Debt discount, net			(3,312)		—				(3,589)		—
Deferred financing costs, net			(3,062)		—				(3,303)		—
HELX
Solar loan-backed notes	7.36	%	201,011		24,889		6.23	%	162,301		18,335
Debt discount, net			(18,779)		—				(12,459)		—
Deferred financing costs, net			(3,489)		—				(3,319)		—
IS
Revolving credit facility	8.40	%	37,100		—				—		—

SOLV
Solar asset-backed notes	6.70	%	316,566		6,934				—		—
Debt discount, net			(17,195)		—				—		—
Deferred financing costs, net			(7,515)		—				—		—
HELXI
Solar loan-backed notes	6.00	%	261,101		24,370				—		—
Debt discount, net			(12,894)		—				—		—
Deferred financing costs, net			(5,777)		—				—		—




Total			$	6,123,923	$	241,968			$	5,194,755	$	214,431

Availability. As of June 30, 2023, we had $301.1 million of available borrowing capacity under our various financing arrangements, consisting of $54.0 million under the EZOP revolving credit facility, $226.2 million under the TEPH revolving credit facility, $8.0 million under the AP8 revolving credit facility and $12.9 million under the IS revolving credit facility. There was no available borrowing capacity under any of our other financing arrangements. As of June 30, 2023, we were in compliance with all debt covenants under our financing arrangements.

Weighted Average Effective Interest Rates. The weighted average effective interest rates disclosed in the table above are the weighted average stated interest rates for each debt instrument plus the effect on interest expense for other items classified as interest expense, such as the amortization of deferred financing costs, amortization of debt discounts and commitment fees on unused balances for the period of time the debt was outstanding during the indicated periods.

EZOP Debt. In February 2023, we amended the EZOP revolving credit facility to, among other things, (a) increase the aggregate commitment amount from $450.0 million to $675.0 million, (b) increase the uncommitted maximum facility amount from $575.0 million to $800.0 million, (c) amend certain provisions related to the allocation of certain payments made to the lenders, (d) amend certain provisions related to excess concentration limits and eligibility criteria to permit us and our affiliates to provide warranties of, and replacements for, load controllers and generators in connection with the related solar loan contracts and (e) add provisions to allow EZOP to request an increase in the aggregate commitment amount (subject to certain conditions) by adding additional lenders to the EZOP revolving credit facility. In February 2023, Credit Suisse AG ("Credit Suisse") sold a significant part of its Securitized Products Group (the "Credit Suisse Securitized Products Sale") to Apollo Global Management ("Apollo"). Subsequently, Apollo publicly announced the majority of the assets and professionals associated with the sale are now part of or managed by ATLAS SP Partners, a new stand-alone credit firm focused on asset-backed financing and capital markets solutions ("Atlas"). In March 2023, in connection with the Credit Suisse Securitized Products Sale, certain of our subsidiaries consented to the assignment of the loans and commitments of the Credit Suisse lenders to the Atlas lenders (such assignment, the "EZOP Assignment") under the EZOP revolving credit facility. In connection with the EZOP Assignment, Credit Suisse AG, New York Branch ("CSNYB") resigned as the agent under the EZOP revolving credit facility, Atlas Securitized Products Holdings, L.P. (the "Successor Agent") was appointed as the successor agent thereunder and, in connection with such appointment, the Successor Agent assumed the agent roles under the EZOP revolving credit facility. In connection with the appointment of Atlas as Successor Agent, the borrowers and the lenders party to the applicable agency resignation and appointment agreements consented to, among other things, Atlas' ability to assign the agent role under the EZOP revolving credit facility to one of its affiliates subject to certain conditions set forth therein. In March 2023, after the EZOP Assignment, we amended the EZOP revolving credit facility to, among other things, (a) increase the aggregate commitment amount from $675.0 million to $775.0 million, (b) increase the uncommitted maximum facility amount from $800.0 million to $900.0 million, (c) amend and supplement certain defaulting lender provisions and (d) update the references from CSNYB, the predecessor agent, to Atlas, the successor agent, and remove or modify certain provisions related to the borrowing, funding and allocation of payments among the previous lender syndicate (that previously included lenders

affiliated with Credit Suisse that, prior to the date of the amendment to the EZOP revolving credit facility and pursuant to the EZOP Assignment, had assigned their loans and commitments to lenders affiliated with Atlas). We currently do not have the resources to repay this facility when it becomes due in November 2024, however, we believe we will be able to satisfy this obligation through refinancing of the facility. Although we believe it is probable we will refinance this facility, there can be no assurance about our ability to do so.

TEPH Debt. In March 2023, in connection with the Credit Suisse Securitized Products Sale, certain of our subsidiaries consented to the assignment of the loans and commitments of the Credit Suisse lenders to the Atlas lenders (such assignment, the "TEPH Assignment") under the TEPH revolving credit facility. In connection with the TEPH Assignment, CSNYB resigned as the agent under the TEPH revolving credit facility, Atlas was appointed as the successor agent thereunder and, in connection with such appointment, the Successor Agent assumed the agent roles under the TEPH revolving credit facility. In connection with the appointment of Atlas as Successor Agent, the borrowers and the lenders party to the applicable agency resignation and appointment agreements consented to, among other things, Atlas' ability to assign the agent role under the TEPH revolving credit facility to one of its affiliates subject to certain conditions set forth therein. In March 2023, after the TEPH Assignment, we amended the TEPH revolving credit facility to, among other things, (a) increase the aggregate commitment amount from $600.0 million to $700.0 million, (b) increase the uncommitted maximum facility amount from $689.7 million to $789.7 million, (c) add provisions to allow TEPH to request an increase in the aggregate commitment amount (subject to certain conditions) by adding additional lenders to the TEPH revolving credit facility, (d) amend and supplement certain defaulting lender provisions, (e) modify the hedging provisions to give all hedge counterparties the benefit of certain payment priorities and certain other terms previously limited to qualifying hedge counterparties (as defined by the TEPH revolving credit facility), to extend the time period for the event of default resulting from hedge counterparties ceasing to be qualifying hedge counterparties and to make other hedge-related amendments, (f) update the references from CSNYB, the predecessor administrative agent, to Atlas, the successor administrative agent, and remove or modify certain provisions related to the borrowing, funding and allocation of payments among the previous lender syndicate (that previously included lenders affiliated with Credit Suisse that, prior to the date of the amendment to the TEPH revolving credit facility and pursuant to the TEPH Assignment, had assigned their loans and commitments to lenders affiliated with Atlas), (g) add European Union bail-in provisions and (h) add certain syndication-related provisions. We currently do not have the resources to repay this facility when it becomes due in November 2024, however, we believe we will be able to satisfy this obligation through refinancing of the facility. Although we believe it is probable we will refinance this facility, there can be no assurance about our ability to do so.

AP8 Debt. In March 2023, we amended the AP8 revolving credit facility to, among other things, increase the aggregate commitment amount from $75.0 million to $150.0 million. In June 2023, we amended the AP8 revolving credit facility to, among other things, increase the aggregate commitment amount from $150.0 million to $185.0 million. We believe we will be able to satisfy this obligation due in September 2024 through refinancing of the facility or alternatively through the use of our existing cash resources and liquidity.

IS Debt. In March 2023, IS entered into a secured revolving credit facility with Texas Capital Bank, as agent, and the lenders party thereto, for an aggregate commitment amount of $50.0 million with a maturity date of the earlier of (a) March 2026 and (b) six months from the latest maturity date of any material parent credit facility (defined as a parent credit facility with a commitment amount of $250.0 million or more that, if terminated could individually be expected to result in a liquidity event (as defined by the IS revolving credit facility)). The proceeds of the loans under the IS revolving credit facility are available to purchase or otherwise acquire certain accounts receivable and inventory, fund certain reserve accounts that are required to be maintained by IS in accordance with the revolving credit agreement and pay fees and expenses incurred in connection with the IS revolving credit facility. Interest on the borrowings under the IS revolving credit facility is due monthly. Borrowings under the IS revolving credit facility bear interest at an annual rate based on Term SOFR (as defined by the IS revolving credit facility).

SOLV Debt. In April 2023, we pooled and transferred eligible solar energy systems and the related asset receivables into wholly-owned subsidiaries of SOLV, a special purpose entity, that issued $300.0 million in aggregate principal amount of Series 2023-1 Class A solar asset-backed notes and $23.5 million in aggregate principal amount of Series 2023-1 Class B solar asset-backed notes (collectively, the "SOLV Notes") with a maturity date of April 2058. The SOLV Notes were issued at a discount of 5.01% and 11.63% for the Class A and Class B notes, respectively, and bear interest at an annual rate equal to 5.40% and 7.35% for the Class A and Class B notes, respectively. The cash flows generated by the solar energy systems of SOLV's subsidiaries are used to service the quarterly principal and interest payments on the SOLV Notes and satisfy SOLV's expenses, and any remaining cash can be distributed to Sunnova Sol V Depositor, LLC, SOLV's sole member. In connection with the SOLV Notes, certain of our affiliates receive a fee for managing and servicing the solar energy systems pursuant to a transaction management agreement and management and servicing agreements. In addition, Sunnova Energy Corporation has guaranteed (a) the obligations of certain of our subsidiaries to manage and service the solar energy systems pursuant to a transaction management agreement and management and servicing agreements, (b) the managing members' obligations, in such

capacity, under the related financing fund's limited liability company agreement and (c) certain of our subsidiaries' obligations to repurchase or substitute certain ineligible solar energy systems eventually sold to SOLV pursuant to the sale and contribution agreement. SOLV is also required to maintain certain reserve accounts for the benefit of the holders of the SOLV Notes, each of which must remain funded at all times to the levels specified in the SOLV Notes. The indenture requires SOLV to track the debt service coverage ratio (such ratio, the "DSCR") of (a) the amount of certain payments received from customers, certain performance based incentives, certain energy credits and any applicable insurance proceeds as of a specific date to (b) interest and scheduled principal due on the SOLV Notes as of such date, with the potential to enter into an early amortization period if the DSCR drops below a certain threshold. The holders of the SOLV Notes have no recourse to our other assets except as expressly set forth in the SOLV Notes.

HELXI Debt. In May 2023, we pooled and transferred eligible solar loans and the related receivables into HELXI, a special purpose entity, that issued $174.9 million in aggregate principal amount of Series 2023-A Class A solar loan-backed notes, $80.1 million in aggregate principal amount of Series 2023-A Class B solar loan-backed notes and $31.7 million in aggregate principal amount of Series 2023-A Class C solar loan-backed notes (collectively, the "HELXI Notes") with a maturity date of May 2050. The HELXI Notes were issued at a discount of 2.57% for Class A, 5.31% for Class B and 13.56% for Class C and bear interest at an annual rate of 5.30%, 5.60% and 6.00%, respectively. The cash flows generated by these solar loans are used to service the monthly principal and interest payments on the HELXI Notes and satisfy HELXI's expenses, and any remaining cash can be distributed to Sunnova Helios XI Depositor, LLC, HELXI's sole member. In connection with the HELXI Notes, certain of our affiliates receive a fee for managing and servicing the solar energy systems pursuant to management and service agreements. In addition, Sunnova Energy Corporation has guaranteed, among other things, (a) the obligations of certain of our subsidiaries to manage and service the solar energy systems pursuant to management and servicing agreements and (b) certain of our subsidiaries' obligations to repurchase or substitute certain ineligible solar loans eventually sold to HELXI pursuant to the related sale and contribution agreement. HELXI is also required to maintain certain reserve accounts for the benefit of the holders of the HELXI Notes, each of which must be funded at all times to the levels specified in the HELXI Notes. The holders of the HELXI Notes have no recourse to our other assets except as expressly set forth in the HELXI Notes.

Sunnova Energy Corporation Debt. In June 2023, Sunnova Energy Corporation entered into an arrangement to finance $6.8 million of insurance premiums at an annual interest rate of 7.24% over ten months.

Fair Values of Long-Term Debt. The fair values of our long-term debt and the corresponding carrying amounts are as

follows:


	As of June 30, 2023				As of December 31, 2022


	Carrying Value		Estimated Fair Value		Carrying Value		Estimated Fair Value
	(in thousands)
SEI 0.25% convertible senior notes	$	575,000	$	509,103	$	575,000	$	511,733
SEI 2.625% convertible senior notes	600,000		572,133		600,000		574,693
Sunnova Energy Corporation note payable	4,924		4,924		—		—
Sunnova Energy Corporation 5.875% senior notes	400,000		357,176		400,000		359,283
EZOP revolving credit facility	721,000		721,000		500,000		500,000
HELII solar asset-backed notes	208,324		200,362		212,648		206,045
RAYSI solar asset-backed notes	113,828		102,976		115,835		104,594
HELIII solar loan-backed notes	100,550		89,725		104,685		93,706
TEPH revolving credit facility	473,840		473,840		425,700		425,700
SOLI solar asset-backed notes	357,508		310,552		365,025		313,174
HELIV solar loan-backed notes	112,641		97,524		117,149		100,913
AP8 revolving credit facility	177,000		177,000		75,000		75,000
SOLII solar asset-backed notes	233,856		190,429		238,685		189,728
HELV solar loan-backed notes	153,144		133,109		158,307		135,408
SOLIII solar asset-backed notes	283,087		237,785		292,411		237,425
HELVI solar loan-backed notes	179,261		153,633		184,439		157,289
HELVII solar loan-backed notes	137,749		120,098		142,914		124,476
HELVIII solar loan-backed notes	271,378		243,427		281,113		252,483
SOLIV solar asset-backed notes	341,155		326,515		346,331		334,335
HELIX solar loan-backed notes	218,591		206,158		223,469		210,070
HELX solar loan-backed notes	225,900		222,457		180,636		183,165
IS revolving credit facility	37,100		37,100		—		—
SOLV solar asset-backed notes	323,500		314,433		—		—
HELXI solar loan-backed notes	285,471		277,951		—		—


Total (1)	$	6,534,807	$	6,079,410	$	5,539,347	$	5,089,220

(1) Amounts exclude the net deferred financing costs (classified as debt) and net debt discounts of $168.9 million and $130.2 million as of June 30, 2023 and December 31, 2022, respectively.

For the note payable, EZOP, TEPH, AP8 and IS debt, the estimated fair values approximate the carrying amounts primarily due to the variable nature of the interest rates of the underlying instruments. For the convertible senior notes, senior notes and the HELII, RAYSI, HELIII, SOLI, HELIV, SOLII, HELV, SOLIII, HELVI, HELVII, HELVIII, SOLIV, HELIX, HELX, SOLV and HELXI debt, we determined the estimated fair values based on an analysis of debt with similar book values, maturities and required market yields based on current interest rates.

Derivative Instruments

6 Months Ended

Jun. 30, 2023

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative Instruments

Derivative InstrumentsInterest Rate Swaps and Caps on EZOP Debt. During the six months ended June 30, 2023 and 2022, EZOP entered into interest rate swaps and caps for an aggregate notional amount of $153.0 million and $340.6 million, respectively, to economically hedge its exposure to the variable interest rates on a portion of the outstanding EZOP debt. No collateral was posted for the interest rate swaps and caps as they are secured under the EZOP revolving credit facility. In August 2022, the notional amount of the interest rate swaps and caps began decreasing to match EZOP's estimated monthly principal payments on the debt. During the six months ended June 30, 2023 and 2022, EZOP unwound interest rate swaps and caps with an aggregate notional amount of $0 and $360.2 million, respectively, and recorded a realized gain of $11.1 million and $15.7 million, respectively.

Interest Rate Swaps and Caps on TEPH Debt. During the six months ended June 30, 2023 and 2022, TEPH entered into interest rate swaps and caps for an aggregate notional amount of $314.6 million and $421.1 million, respectively, to economically hedge its exposure to the variable interest rates on a portion of the outstanding TEPH debt. No collateral was posted for the interest rate swaps and caps as they are secured under the TEPH revolving credit facility. In October 2023, the notional amount of the interest rate swaps and caps will begin decreasing to match TEPH's estimated quarterly principal payments on the debt. During the six months ended June 30, 2023 and 2022, TEPH unwound interest rate swaps and caps with an aggregate notional amount of $241.1 million and $515.4 million, respectively, and recorded a realized gain of $4.5 million and $29.8 million, respectively.

Interest Rate Swaps and Caps on AP8 Debt. During the six months ended June 30, 2023 and 2022, AP8 entered into interest rate swaps and caps for an aggregate notional amount of $110.0 million and $0, respectively, to economically hedge its exposure to the variable interest rates on a portion of the outstanding AP8 debt. No collateral was posted for the interest rate swaps and caps as they are secured under the AP8 revolving credit facility. The notional amount of the interest rate swaps and caps is locked for the life of the contract. During the six months ended June 30, 2023 and 2022, AP8 unwound interest rate swaps and caps with an aggregate notional amount of $0 and recorded a realized gain of $116,000 and $0, respectively.

The following table presents a summary of the outstanding derivative instruments:


	As of June 30, 2023					As of December 31, 2022


	Effective Date	Termination Date	Fixed Interest Rate	Aggregate Notional Amount		Effective Date	Termination Date	Fixed Interest Rate	Aggregate Notional Amount
	(in thousands, except interest rates)
EZOP	June 2022 - February 2023	October 2031 - November 2035	0.890%	$	609,294	June 2022 - July 2022	July 2034	0.890%	$	489,477
TEPH	July 2022 - July 2023	October 2031 - October 2041	2.620% - 3.472%	312,200		July 2022 - December 2022	January 2035 - April 2041	1.520% - 2.630%	383,749
AP8	November 2022 - June 2023	September 2025	4.250%	185,000		November 2022	September 2025	4.250%	75,000
Total				$	1,106,494				$	948,226

The following table presents the fair value of the interest rate swaps and caps as recorded in the unaudited condensed consolidated balance sheets:


	As of June 30, 2023		As of December 31, 2022


	(in thousands)
Other assets	$	122,271	$	112,712

We did not designate the interest rate swaps and caps as hedging instruments for accounting purposes. As a result, we recognize changes in fair value immediately in interest expense, net. The following table presents the impact of the interest rate swaps and caps as recorded in the unaudited condensed consolidated statements of operations:


	Three Months Ended June 30,				Six Months Ended June 30,
	2023		2022		2023		2022
	(in thousands)
Realized gain	$	(9,062)	$	(46,097)	$	(15,769)	$	(45,506)
Unrealized (gain) loss	(15,605)		32,857		8,011		(1,017)
Total	$	(24,667)	$	(13,240)	$	(7,758)	$	(46,523)

Income Taxes	6 Months Ended
Income Taxes	Jun. 30, 2023
Income Tax Disclosure [Abstract]
Income Taxes	Income TaxesOur effective income tax rate is (8)% and 0% for the three months ended June 30, 2023 and 2022, respectively, and is (4)% and 0% for the six months ended June 30, 2023 and 2022, respectively. Total income tax differs from the amounts computed by applying the statutory income tax rate to loss before income tax primarily as a result of our valuation allowance. We assessed whether we had any significant uncertain tax positions taken in a filed tax return, planned to be taken in a future tax return or claim, or otherwise subject to interpretation and determined there were none not more likely than not to be sustained upon examination, including resolution of any related appeals or litigation processes, based on the technical merits of the position, or prospectively approved when such approval may be sought in advance. Accordingly, we recorded no reserve for uncertain tax positions. Should a provision for any interest or penalties relative to unrecognized tax benefits be necessary, it is our policy to accrue for such in our income tax accounts. There were no such accruals as of June 30, 2023 and December 31, 2022 and we do not expect a significant change in gross unrecognized tax benefits in the next twelve months. Our tax years after 2011 remain subject to examination by the Internal Revenue Service and by the taxing authorities in the states and territories in which we operate.

- Definition

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
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-Name Accounting Standards Codification
-Section 50
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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Reference 10: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

Redeemable Noncontrolling Interests and Noncontrolling Interests	6 Months Ended
	Jun. 30, 2023
Noncontrolling Interest [Abstract]
Redeemable Noncontrolling Interests and Noncontrolling Interests	Redeemable Noncontrolling Interests and Noncontrolling Interests Redeemable Noncontrolling Interests In February 2023, the Class A member of Sunnova TEP 7-B, LLC increased its capital commitment from approximately $30.0 million to approximately $125.0 million. In March 2023, the Class A member of Sunnova TEP 7-C, LLC increased its capital commitment from approximately $41.0 million to approximately $51.3 million. In May 2023, we admitted a tax equity investor as the Class A member of Sunnova TEP 7-E, LLC ("TEP7E"), a subsidiary of Sunnova TEP 7-E Manager, LLC, which is the Class B member of TEP7E. The Class A member of TEP7E made a total capital commitment of approximately $51.0 million. In June 2023, we exercised our purchase option to purchase 100% of the Class A member's interest in Sunnova TEP I, LLC ("TEPI") for $5.9 million. This purchase resulted in an increase in our equity in TEPI of $67.0 million. The carrying values of the redeemable noncontrolling interests were equal to or greater than the redemption values as of June 30, 2023 and December 31, 2022. Noncontrolling Interests In April 2023, the Class A member of Sunnova TEP V-C, LLC increased its capital commitment from approximately $150.0 million to approximately $150.2 million. In April 2023, the Class A member of Sunnova TEP 6-A, LLC increased its capital commitment from approximately $50.0 million to approximately $57.7 million. In June 2023, the Class A member of Sunnova TEP 7-D, LLC increased its capital commitment from approximately $150.0 million to approximately $250.0 million.

Stockholders' Equity	6 Months Ended
Stockholders' Equity	Jun. 30, 2023
Equity [Abstract]
Stockholders' Equity	Stockholders' EquityDuring the six months ended June 30, 2023 and 2022, we issued 693,443 and 694,446 shares of our common stock to Lenx, LLC pursuant to the terms of the earnout agreement, as amended, entered into in connection with the acquisition of SunStreet Energy Group, LLC.

- Definition

The entire disclosure for equity.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-Subparagraph (h)
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-Subparagraph (a)
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-Name Accounting Standards Codification
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-Topic 946
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Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
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Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
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-Name Accounting Standards Codification
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Reference 13: http://www.xbrl.org/2003/role/disclosureRef
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Reference 17: http://www.xbrl.org/2003/role/disclosureRef
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Reference 18: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

Equity-Based Compensation

6 Months Ended

Jun. 30, 2023

Share-Based Payment Arrangement [Abstract]

Equity-Based Compensation

Equity-Based CompensationIn February 2023, the aggregate number of shares of common stock that may be issued pursuant to awards under the 2019 Long-Term Incentive Plan (the "LTIP") was increased by 1,525,652, an amount that, together with the shares remaining available for grant under the LTIP, is equal to 5,746,588 shares, or approximately 5% of the number of shares of common stock outstanding as of December 31, 2022.

Stock Options

The following table summarizes stock option activity:


	Number of Stock Options	Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (Years)	Weighted Average Grant Date Fair Value		Aggregate Intrinsic Value
							(in thousands)




Outstanding, December 31, 2022	3,259,459	$	18.48	4.75			$	10,341
Granted	942,348	$	15.13	9.74	$	8.85
Exercised	(31,360)	$	13.22				$	132
Forfeited	(138,941)	$	22.02		$	11.80
Outstanding, June 30, 2023	4,031,506	$	17.61	5.36			$	13,561
Exercisable, June 30, 2023	2,663,597	$	16.43	3.32			$	10,734
Vested and expected to vest, June 30, 2023	4,031,506	$	17.61	5.36			$	13,561

Non-vested, June 30, 2023	1,367,909				$	10.90

The number of stock options that vested during the three months ended June 30, 2023 and 2022 was 0. The number of stock options that vested during the six months ended June 30, 2023 and 2022 was 16,816. The grant date fair value of stock options that vested during the three months ended June 30, 2023 and 2022 was $0. The grant date fair value of stock options that vested during the six months ended June 30, 2023 and 2022 was $309,000. As of June 30, 2023, there was $11.2 million of total unrecognized compensation expense related to stock options, which is expected to be recognized over the remaining weighted average period of 2.27 years.

Restricted Stock Units

The following table summarizes restricted stock unit activity:


	Number of Restricted Stock Units	Weighted Average Grant Date Fair Value




Outstanding, December 31, 2022	1,609,615	$	20.62
Granted	1,810,918	$	14.53
Vested	(816,567)	$	18.34
Forfeited	(209,348)	$	18.28
Outstanding, June 30, 2023	2,394,618	$	17.00

The number of restricted stock units that vested during the three months ended June 30, 2023 and 2022 was 75,588 and 58,198, respectively. The number of restricted stock units that vested during the six months ended June 30, 2023 and 2022 was 816,567 and 702,664, respectively. The grant date fair value of restricted stock units that vested during the three months ended June 30, 2023 and 2022 was $1.5 million and $1.9 million, respectively. The grant date fair value of restricted stock units that vested during the six months ended June 30, 2023 and 2022 was $15.0 million and $15.1 million, respectively. As of June 30, 2023, there was $33.0 million of total unrecognized compensation expense related to restricted stock units, which is expected to be recognized over the remaining weighted average period of 1.63 years.

Employee Stock Purchase Plan ("ESPP")

As of June 30, 2023 and December 31, 2022, the number of shares of common stock issued under the ESPP was 20,966 and 7,106, respectively.

Basic and Diluted Net Loss Per Share

6 Months Ended

Jun. 30, 2023

Earnings Per Share [Abstract]

Basic and Diluted Net Loss Per Share

The following table sets forth the computation of our basic and diluted net loss per share:


	Three Months Ended June 30,				Six Months Ended June 30,
	2023		2022		2023		2022
	(in thousands, except share and per share amounts)





Net loss attributable to stockholders—basic and diluted	$	(86,091)	$	(41,137)	$	(167,174)	$	(76,195)

Net loss per share attributable to stockholders—basic and diluted	$	(0.74)	$	(0.36)	$	(1.45)	$	(0.67)
Weighted average common shares outstanding—basic and diluted	116,236,741		114,548,970		115,658,570		114,027,097

The following table presents the weighted average shares of common stock equivalents that were excluded from the computation of diluted net loss per share for the periods presented because including them would have been anti-dilutive:


	Three Months Ended June 30,		Six Months Ended June 30,
	2023	2022	2023	2022
Equity-based compensation awards	6,460,556	5,192,317	5,753,120	4,841,388

Convertible senior notes	34,150,407	16,628,073	34,150,407	16,628,073

Commitments and Contingencies

6 Months Ended

Jun. 30, 2023

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Legal. We are a party to a number of lawsuits, claims and governmental proceedings that are ordinary, routine matters incidental to our business. In addition, in the ordinary course of business, we periodically have disputes with dealers and customers. We do not expect the outcomes of these matters to have, either individually or in the aggregate, a material adverse effect on our financial position or results of operations.

Performance Guarantee Obligations. As of June 30, 2023, we recorded $4.5 million related to our guarantee of certain specified minimum solar energy production output under our leases and loans, of which $2.3 million is recorded in other current liabilities and $2.2 million is recorded in other long-term liabilities in the unaudited condensed consolidated balance sheet. As of December 31, 2022, we recorded $4.8 million related to these guarantees, of which $2.5 million is recorded in other current liabilities and $2.3 million is recorded in other long-term liabilities in the unaudited condensed consolidated balance sheet. The changes in our aggregate performance guarantee obligations are as follows:



	Six Months Ended June 30,
	2023		2022
	(in thousands)
Balance at beginning of period	$	4,845	$	5,293
Accruals	2,485		1,052

Settlements	(2,791)		(3,161)
Balance at end of period	$	4,539	$	3,184

Operating and Finance Leases. We lease real estate and certain office equipment under operating leases and vehicles and certain other office equipment under finance leases. The following table presents the detail of lease expense as recorded in general and administrative expense in the unaudited condensed consolidated statements of operations:


	Three Months Ended June 30,				Six Months Ended June 30,
	2023		2022		2023		2022
	(in thousands)
Operating lease expense	$	692	$	693	$	1,384	$	1,385
Finance lease expense:
Amortization expense	249		186		479		361
Interest on lease liabilities	20		13		38		27
Short-term lease expense	39		33		66		60
Variable lease expense	235		267		468		522

Total	$	1,235	$	1,192	$	2,435	$	2,355

The following table presents the detail of right-of-use assets and lease liabilities as recorded in other assets and other current liabilities/other long-term liabilities, respectively, in the unaudited condensed consolidated balance sheets:


	As of June 30, 2023		As of December 31, 2022


	(in thousands)
Right-of-use assets:
Operating leases	$	13,677	$	14,706
Finance leases	2,897		2,476
Total right-of-use assets	$	16,574	$	17,182

Current lease liabilities:
Operating leases	$	2,510	$	2,451
Finance leases	945		796
Long-term leases liabilities:
Operating leases	14,729		15,751
Finance leases	1,120		957
Total lease liabilities	$	19,304	$	19,955

Other information related to leases was as follows:


	Six Months Ended June 30,
	2023		2022
	(in thousands)
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases (1)	$	1,319	$	809
Operating cash flows from finance leases	$	38	$	27
Financing cash flows from finance leases	$	439	$	406
Right-of-use assets obtained in exchange for lease obligations:

Finance leases	$	901	$	570

(1)Includes reimbursements in 2023 and 2022 of approximately $225,000 and $45,000, respectively, for leasehold improvements.


	As of June 30, 2023		As of December 31, 2022


Weighted average remaining lease term (years):
Operating leases	6.13		6.60
Finance leases	4.54		2.86
Weighted average discount rate:
Operating leases	3.95	%	3.95	%
Finance leases	5.27	%	4.37	%

Future minimum lease payments under our non-cancelable leases as of June 30, 2023 were as follows:


	Operating Leases		Finance Leases
	(in thousands)
Remaining 2023	$	1,607	$	560
2024	3,118		881
2025	3,168		504
2026	3,236		220
2027	3,304		56
2028 and thereafter	5,485		—
Total	19,918		2,221
Amount representing interest	(2,283)		(156)
Amount representing leasehold incentives	(396)		—
Present value of future payments	17,239		2,065
Current portion of lease liability	(2,510)		(945)
Long-term portion of lease liability	$	14,729	$	1,120

Guarantees or Indemnifications. We enter into contracts that include indemnifications and guarantee provisions. In general, we enter into contracts with indemnities for matters such as breaches of representations and warranties and covenants contained in the contract and/or against certain specified liabilities. Examples of these contracts include dealer agreements, debt agreements, asset purchases and sales agreements, service agreements and procurement agreements. We are unable to estimate our maximum potential exposure under these agreements until an event triggering payment occurs.

Dealer Commitments. As of June 30, 2023 and December 31, 2022, the net unamortized balance of payments to dealers for exclusivity and other similar arrangements was $173.8 million and $121.3 million, respectively. Under these agreements, we paid $31.1 million and $13.7 million during the three months ended June 30, 2023 and 2022, respectively, and we paid $55.7 million and $26.9 million during the six months ended June 30, 2023 and 2022, respectively. We could be obligated to make maximum payments, excluding additional amounts payable on a per watt basis if even higher thresholds are met, as follows:


	Dealer Commitments
	(in thousands)
Remaining 2023	$	13,235
2024	75,691
2025	60,561
2026	36,904
2027	30,000
2028 and thereafter	—
Total	$	216,391

Purchase Commitments. In December 2021, we amended an agreement with a supplier in which we agreed to purchase at least 1,420 megawatt hours of solar energy systems, energy storage systems and accessories through December 2023. The amendment does not contain specific dollar amounts or thresholds; however, we estimate these remaining purchase commitments to be approximately $334.6 million. Under this agreement, we purchased $40.1 million and $43.9 million during the three months ended June 30, 2023 and 2022, respectively, and we purchased $118.5 million and $85.7 million during the six months ended June 30, 2023 and 2022, respectively.

Information Technology Commitments. We have certain long-term contractual commitments related to information technology software services and licenses. Future commitments as of June 30, 2023 were as follows:


	Information Technology Commitments
	(in thousands)
Remaining 2023	$	24,111
2024	7,049
2025	1,682
2026	—
2027	—
2028 and thereafter	—
Total	$	32,842

Subsequent Events	6 Months Ended
Subsequent Events	Jun. 30, 2023
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events[Subsequent Events. TBD.]

Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
Pay vs Performance Disclosure - USD ($) $ in Thousands	Jun. 30, 2023	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2023	Jun. 30, 2022
Pay vs Performance Disclosure
Net Income (Loss)	$ (86,091)	$ (41,137)	$ (35,058)	$ (167,174)	$ (76,195)

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

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+ Details

Insider Trading Arrangements	3 Months Ended	6 Months Ended
Insider Trading Arrangements	Jun. 30, 2023 shares	Jun. 30, 2023 shares
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false
William J. Berger [Member]
Trading Arrangements, by Individual
Material Terms of Trading Arrangement		The 10b5-1 Plan authorizes an agent to sell, from August 1, 2023 until September 1, 2023, such securities as are necessary to satisfy tax withholding obligations, commissions and any fees arising exclusively from the vesting on July 29, 2023, of the compensatory award of 119,047 restricted stock units granted July 29, 2019.
Name	William J. Berger
Title	President and Chief Executive Officer
Rule 10b5-1 Arrangement Adopted	true
Adoption Date	May 2, 2023
William J. Berger, Restricted Stock Units [Member] \| William J. Berger [Member]
Trading Arrangements, by Individual
Aggregate Available	119,047	119,047

Significant Accounting Policies (Policies)	6 Months Ended
Significant Accounting Policies (Policies)	Jun. 30, 2023
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The accompanying interim unaudited condensed consolidated financial statements ("interim financial statements") include our consolidated balance sheets, statements of operations, statements of redeemable noncontrolling interests and equity and statements of cash flows and have been prepared in accordance with accounting principles generally accepted in the United States of America ("GAAP") from records maintained by us. We have condensed or omitted certain information and note disclosures normally included in the financial statements prepared in accordance with GAAP pursuant to the applicable rules and regulations of the Securities and Exchange Commission ("SEC") regarding interim financial reporting. As such, these interim financial statements should be read in conjunction with our 2022 annual audited consolidated financial statements and accompanying notes included in our Annual Report on Form 10-K filed with the SEC on February 23, 2023. Our interim financial statements reflect all normal recurring adjustments necessary, in our opinion, to state fairly our financial position and results of operations for the reported periods. Amounts reported for interim periods may not be indicative of a full year period because of our continual growth, seasonal fluctuations in demand for power, timing of maintenance and other expenditures, changes in interest expense and other factors. Our interim financial statements include our accounts and those of our subsidiaries in which we have a controlling financial interest. In accordance with the provisions of the Financial Accounting Standards Board ("FASB") Accounting Standards Codification ("ASC") 810, Consolidation, we consolidate any VIE of which we are the primary beneficiary. We form VIEs with our investors in the ordinary course of business to facilitate the funding and monetization of certain attributes associated with our solar energy systems. The typical condition for a controlling financial interest is holding a majority of the voting interests of an entity. However, a controlling financial interest may also exist in entities, such as VIEs, through arrangements that do not involve holding a majority of the voting interests. A primary beneficiary is defined as the party that has (a) the power to direct the activities of a VIE that most significantly impact the VIE's economic performance and (b) the obligation to absorb losses or receive benefits from the VIE that could potentially be significant to the VIE. We do not consolidate a VIE in which we have a majority ownership interest when we are not considered the primary beneficiary. We have considered the provisions within the contractual arrangements that grant us power to manage and make decisions that affect the operation of our VIEs, including determining the solar energy systems contributed to the VIEs, and the installation, operation and maintenance of the solar energy systems. We consider the rights granted to the other investors under the contractual arrangements to be more protective in nature rather than substantive participating rights. As such, we have determined we are the primary beneficiary of our VIEs and evaluate our relationships with our VIEs on an ongoing basis to determine whether we continue to be the primary beneficiary. We have eliminated all intercompany transactions in consolidation.
Revisions	RevisionsWe have revised our previously issued interim financial statements to correct immaterial errors pertaining to our interest rate derivative financial instruments, specifically the credit valuation adjustment to account for the counterparties' credit risk. We originally did not record the estimated reduction to the derivative assets related to the credit valuation adjustment as of March 31, 2022 and June 30, 2022. These immaterial errors impacted our consolidated balance sheets, consolidated statements of operations, consolidated statements of cash flows and consolidated statements of redeemable noncontrolling interests and equity.
Use of Estimates	Use of Estimates The application of GAAP in the preparation of the interim financial statements requires us to make estimates and assumptions that affect the amounts reported in the interim financial statements and accompanying notes. We base our estimates on historical experience and on various other assumptions believed to be reasonable, the results of which form the basis for making judgments about the carrying values of assets and liabilities. Actual results could differ materially from those estimates.
Accounts Receivable	Accounts ReceivableAccounts Receivable—Trade. Accounts receivable—trade primarily represents trade receivables from customers that are generally collected in the subsequent month. Accounts receivable—trade is recorded net of an allowance for credit losses, which is based on our assessment of the collectability of customer accounts based on the best available data at the time. We review the allowance by considering factors such as historical experience, customer credit rating, contractual term, aging category and current economic conditions that may affect a customer's ability to pay to identify customers with potential disputes or collection issues. We write off accounts receivable when we deem them uncollectible.Accounts Receivable—Other. Accounts receivable—other primarily represents receivables from our dealers or other parties related to the sale of inventory and the use of inventory procured by us.
Inventory	InventoryInventory is stated at the lower of cost and net realizable value using the first-in, first-out method. Inventory primarily represents (a) raw materials, such as energy storage systems, photovoltaic modules, inverters, meters and modems, (b) homebuilder construction in progress and (c) other associated equipment purchased. These materials are typically procured by us and used by our dealers, sold to our dealers or held for use as original parts on new solar energy systems or replacement parts on existing solar energy systems. We remove these items from inventory and record the transaction in typically one of these manners: (a) expense to operations and maintenance expense when installed as a replacement part for a solar energy system, (b) recognize in accounts receivable—other when procured by us and used by our dealers, (c) expense to cost of revenue—inventory sales if sold directly to a dealer or other party, (d) capitalize to property and equipment when installed on an existing home or business or (e) capitalize to property and equipment when placed in service under the homebuilder program. We periodically evaluate our inventory for unusable and obsolete items based on assumptions about future demand and market conditions. Based on this evaluation, provisions are made to write inventory down to net realizable value.
Fair Value of Financial Instruments	Fair Value of Financial Instruments Fair value is an exit price representing the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. As such, fair value is a market-based measurement that should be determined based on assumptions market participants would use in pricing an asset or a liability. Valuation techniques used to measure fair value must maximize the use of observable inputs and minimize the use of unobservable inputs. ASC 820 establishes a three-tier fair value hierarchy, which prioritizes inputs that may be used to measure fair value as follows: •Level 1—Observable inputs that reflect unadjusted quoted market prices in active markets for identical assets or liabilities that are accessible at the measurement date. •Level 2—Observable inputs other than Level 1 prices, such as quoted market prices for similar assets or liabilities in active markets, quoted market prices in markets that are not active or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. •Level 3—Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. In certain cases, the inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, the level in the fair value hierarchy must be determined based on the lowest level input that is significant to the fair value measurement. An assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment and consideration of factors specific to the asset or liability. Our financial instruments include cash, cash equivalents, accounts receivable, customer notes receivable, investments in solar receivables, accounts payable, accrued expenses, long-term debt, interest rate swaps and caps and contingent consideration. The carrying values of accounts receivable, accounts payable and accrued expenses approximate the fair values due to the fact that they are short-term in nature (Level 1). We estimate the fair value of our customer notes receivable based on interest rates currently offered under the loan program with similar maturities and terms (Level 3). We estimate the fair value of our investments in solar receivables based on a discounted cash flows model that utilizes market data related to solar irradiance, production factors by region and projected electric utility rates in order to build up revenue projections (Level 3). In addition, lease-related revenue and maintenance and service costs were supported through the use of available market studies and data. We estimate the fair value of our fixed-rate long-term debt based on an analysis of debt with similar book values, maturities and required market yields based on current interest rates (Level 3). We determine the fair values of the interest rate derivative transactions based on a discounted cash flow method using contractual terms of the transactions and counterparty credit risk as key inputs. The floating interest rate is based on observable rates consistent with the frequency of the interest cash flows (Level 2). For contingent consideration, we estimate the fair value of the installation earnout using the Monte Carlo model based on the forecasted placements for the installations and the microgrid earnout using a scenario-based methodology based on the probabilities of the microgrid earnout, both using Level 3 inputs. See Note 6, Customer Notes Receivable, Note 7, Long-Term Debt and Note 8, Derivative Instruments. Changes in the fair value of our investments in solar receivables are included in other operating expense/income in the consolidated statements of operations. Changes in the fair value of our contingent consideration are included in other operating expense/income in the consolidated statements of operations.
Revenue / Loans / Deferred Revenue	Revenue We recognize revenue from contracts with customers as we satisfy our performance obligations at a transaction price reflecting an amount of consideration based upon an estimated rate of return, net of cash incentives. We express this rate of return as the solar rate per kilowatt hour ("kWh") in the customer contract. The amount of revenue we recognize does not equal customer cash payments because we satisfy performance obligations ahead of cash receipt or evenly as we provide continuous access on a stand-ready basis to the solar energy system. We reflect the differences between revenue recognition and cash payments received in accounts receivable, other assets or deferred revenue, as appropriate. Revenue allocated to remaining performance obligations represents contracted revenue we have not yet recognized and includes deferred revenue as well as amounts that will be invoiced and recognized as revenue in future periods. Contracted but not yet recognized revenue was approximately $4.1 billion as of June 30, 2023, of which we expect to recognize approximately 3% over the next 12 months. We do not expect the annual recognition to vary significantly over approximately the next 20 years as the vast majority of existing solar service agreements have at least 20 years remaining, given the average age of the fleet of solar energy systems under contract is less than four years. Certain customers may receive cash incentives. We defer recognition of the payment of these cash incentives and recognize them over the life of the contract as a reduction to revenue. The deferred payment is recorded in other assets for customers who receive the cash incentives under our lease and PPA agreements, and as a contra-liability in other long-term liabilities for customers who receive the cash incentives under our loan agreements. PPAs. Customers purchase electricity from us under PPAs. Pursuant to ASC 606, we recognize revenue based upon the amount of electricity delivered as determined by remote monitoring equipment at solar rates specified under the PPAs. All customers must pass our credit evaluation process. The PPAs generally have a term of 20 or 25 years with an opportunity for customers to renew for up to an additional 10 years, via two five-year or one 10-year renewal options. Leases. We are the lessor under lease agreements for solar energy systems and energy storage systems, which do not meet the definition of a lease under ASC 842 and are accounted for as contracts with customers under ASC 606. We recognize revenue on a straight-line basis over the contract term as we satisfy our obligation to provide continuous access to the solar energy system. All customers must pass our credit evaluation process. The lease agreements generally have a term of 20 or 25 years with an opportunity for customers to renew for up to an additional 10 years, via two five-year or one 10-year renewal options. In most cases, we provide customers under our lease agreements a performance guarantee that each solar energy system will achieve a certain specified minimum solar energy production output, which is a significant proportion of its expected output. The specified minimum solar energy production output may not be achieved due to natural fluctuations in the weather or equipment failures from exposure and wear and tear outside of our control, among other factors. We determine the amount of the guaranteed output based on a number of different factors, including: (a) the specific site information related to the tilt of the panels, azimuth (a horizontal angle measured clockwise in degrees from a reference direction) of the panels, size of the system, and shading on site; (b) the calculated amount of available irradiance (amount of energy for a given flat surface facing a specific direction) based on historical average weather data and (c) the calculated amount of energy output of the solar energy system. While actual irradiance levels can significantly change year over year due to natural fluctuations in the weather, we expect the levels to average out over the term of a lease and to approximate the levels used in determining the amount of the performance guarantee. Generally, weather fluctuations are the most likely reason a solar energy system may not achieve a certain specified minimum solar energy production output. If the solar energy system does not produce the guaranteed production amount, we are required to refund a portion of the previously remitted customer payments, where the repayment is calculated as the product of (a) the shortfall production amount and (b) the dollar amount (guaranteed rate) per kWh that is fixed throughout the term of the contract. These remittances of a customer's payments, if needed, are payable as early as the first anniversary of the solar energy system's placed in service date and then every annual period thereafter. See Note 14, Commitments and Contingencies. Inventory Sales. Inventory sales revenue represents revenue from the direct sale of inventory to our dealers or other parties. We recognize the related revenue under ASC 606 upon shipment. Shipping and handling costs are included in cost of revenue—inventory sales in the consolidated statements of operations. Service Revenue. Service revenue includes revenue from the direct sale of solar energy systems and energy storage systems to customers with financing provided by us and sales of service plans and repair services. We recognize revenue from the direct sale of energy storage systems in the period in which the storage components are placed in service. Service plans are available to customers whose solar energy system was not originally sold by Sunnova. We recognize revenue from service plan contracts on a straight-line basis over the life of the contract, which is typically 10 years. We recognize revenue from repair services in the period in which the service was performed. Solar Renewable Energy Certificates. Each solar renewable energy certificate ("SREC") represents the environmental benefit of one megawatt hour (1,000 kWh) generated by a solar energy system. SRECs can be sold separate from the actual electricity generated by the renewable-based generation source. We account for the SRECs we generate from our solar energy systems as governmental incentives with no costs incurred to obtain them and do not consider those SRECs output of the underlying solar energy systems. We classify these SRECs as inventory held until sold and delivered to third parties. As we did not incur costs to obtain these governmental incentives, the inventory carrying value for the SRECs was $0 as of June 30, 2023 and December 31, 2022. We enter into economic hedges related to expected production of SRECs through forward contracts. While these fixed price forward contracts serve as an economic hedge against spot price fluctuations for the SRECs, the contracts do not qualify for hedge accounting and are not designated as cash flow hedges or fair value hedges. The contracts require us to physically deliver the SRECs upon settlement. We recognize the related revenue under ASC 606 upon satisfaction of the performance obligation to transfer the SRECs to the stated counterparty. Payments are typically received within one month of transferring the SREC to the counterparty. The costs related to the sales of SRECs are generally limited to broker fees (recorded in cost of revenue—other), which are only paid in connection with certain transactions. In certain circumstances we are required to purchase SRECs on the open market to fulfill minimum delivery requirements under our forward contracts. Cash Sales. Cash sales revenue represents revenue from a customer's purchase of a solar energy system from us typically when purchasing a new home. We recognize the related revenue under ASC 606 upon verification of the home closing. Loans. See discussion of loan revenue in the "Loans" section below. Other Revenue. Other revenue includes certain state and utility incentives. We recognize revenue from state and utility incentives in the periods in which they are earned. Loans We offer a loan program, under which the customer finances the purchase of a solar energy system, energy storage system and/or accessory through a solar service agreement, typically for a term of 10, 15 or 25 years. We recognize cash payments received from customers on a monthly basis under our loan program (a) as interest income, to the extent attributable to earned interest on the contract that financed the customer's purchase; (b) as a reduction of a note receivable on the balance sheet, to the extent attributable to a return of principal (whether scheduled or prepaid) on the contract that financed the customer's purchase; and (c) as revenue, to the extent attributable to payments for operations and maintenance services provided by us. To qualify for the loan program, a customer must pass our credit evaluation process, which requires the customer to have a minimum FICO® score of 600 to 710 depending on certain circumstances, and we secure the loans with the solar energy systems, energy storage systems or accessories financed. The credit evaluation process is performed once for each customer at the time the customer is entering into the solar service agreement with us. Our investments in solar energy systems, energy storage systems and accessories related to the loan program that are not yet placed in service are recorded in other assets in the consolidated balance sheets and are transferred to customer notes receivable upon being placed in service. Customer notes receivable are recorded at amortized cost, net of an allowance for credit losses (as described below), in other current assets and customer notes receivable in the consolidated balance sheets. Accrued interest receivable related to our customer notes receivable is recorded in accounts receivable—trade, net in the consolidated balance sheets. Interest income from customer notes receivable is recorded in interest income in the consolidated statements of operations. The amortized cost of our customer notes receivable is equal to the principal balance of customer notes receivable outstanding and does not include accrued interest receivable. Customer notes receivable continue to accrue interest until they are written off against the allowance, which occurs when the balance is 180 days or more past due unless the balance is in the process of collection. Customer notes receivable are considered past due one day after the due date based on the contractual terms of the loan agreement. In all cases, customer notes receivable balances are placed on a nonaccrual status or written off at an earlier date when they are deemed uncollectible. Expected recoveries do not exceed the aggregate of amounts previously written off and expected to be written off. Accrued interest receivable for customer notes receivable placed on a nonaccrual status is recorded as a reduction to interest income. Interest received on such customer notes receivable is accounted for on a cash basis until the customer notes receivable qualifies for the return to accrual status. Customer notes receivable are returned to accrual status when there is no longer any principal or interest amounts past due and future payments are reasonably assured. The allowance for credit losses is deducted from the customer notes receivable amortized cost to present the net amount expected to be collected. It is measured on a collective (pool) basis when similar risk characteristics (such as financial asset type, customer credit rating, contractual term and vintage) exist. In determining the allowance for credit losses, we identify customers with potential disputes or collection issues and consider our historical level of credit losses and current economic trends that might impact the level of future credit losses. Adjustments to historical loss information are made for differences in current loan-specific risk characteristics, such as differences in underwriting standards. Expected credit losses are estimated over the contractual term of the loan agreements based on the best available data at the time and adjusted for expected prepayments when appropriate. The contractual term excludes expected extensions, renewals and modifications unless either of the following applies: (a) we have a reasonable expectation at the reporting date that a troubled debt restructuring will be executed with an individual customer or (b) the extension or renewal options are included in the original or modified contract at the reporting date and are not unconditionally cancelable by us. Expected credit losses are recorded in general and administrative expense in the consolidated statements of operations. See Note 6, Customer Notes Receivable. Deferred Revenue Deferred revenue consists of amounts for which the criteria for revenue recognition have not yet been met and includes (a) payments for unfulfilled performance obligations that will be recognized on a straight-line basis over the remaining term of the respective solar service agreements, net of any cash incentives earned by the customers, (b) down payments and partial or full prepayments from customers and (c) differences due to the timing of energy production versus billing for certain types of PPAs.
Self-Insurance	Self-Insurance In January 2023, we changed our health insurance policy for qualifying employees in the U.S. from a fully-insured policy to a self-insured policy in order to administer insurance coverage to our employees at a lower cost to us. The change in insurance policy did not have a significant impact on our consolidated financial statements and related disclosures. Under the self-insured policy, we maintain stop-loss coverage from a third party that limits our exposure to large claims. We record a liability associated with these benefits that includes an estimate of both claims filed and losses incurred but not yet reported based on historical claims experience. In estimating this accrual, we utilize a third-party actuary to estimate a range of expected losses, which are based on an analysis of historical data. Assumptions are monitored and adjusted when warranted by changing circumstances. We record our liability for estimated losses under our self-insured policy in accrued liabilities in the consolidated balance sheets. As of June 30, 2023, our liability for self-insured claims was $3.5 million, which represents our best estimate of the future cost of claims incurred as of that date. We believe we have adequate reserves for these claims as of June 30, 2023; however, the actual value of such claims could be significantly affected if future occurrences and claims differ from these assumptions.
New Accounting Guidance	New Accounting Guidance New accounting pronouncements are issued by the FASB or other standard setting bodies and are adopted as of the specified effective date. In March 2022, the FASB issued Accounting Standards Update ("ASU") No. 2022-02, Financial Instruments—Credit Losses: Troubled Debt Restructurings and Vintage Disclosures, to eliminate the accounting guidance for troubled debt restructurings while enhancing disclosure requirements for certain loan refinancings and restructurings by creditors when a borrower is experiencing financial difficulty. This ASU is effective for annual and interim reporting periods beginning in January 2023. We adopted this ASU in January 2023 and determined it did not have a significant impact on our consolidated financial statements and related disclosures.

Organization, Consolidation and Presentation of Financial Statements (Tables)

6 Months Ended

Jun. 30, 2023

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of accounting revisions

The following tables present the impact of these revisions on the interim financial statements:

Consolidated Balance Sheets


	As of March 31, 2022
	As Previously Reported		Revisions		As Revised
	(in thousands)
Other assets	$	662,456	$	(1,475)	$	660,981
Accumulated deficit	$	(423,529)	$	(1,475)	$	(425,004)


	As of June 30, 2022
	As Previously Reported		Revisions		As Revised
	(in thousands)
Other assets	$	802,862	$	(5,609)	$	797,253
Accumulated deficit	$	(377,217)	$	(5,609)	$	(382,826)

Consolidated Statements of Operations


	Three Months Ended March 31, 2022
	As Previously Reported		Revisions		As Revised
	(in thousands)
Interest expense, net	$	(2,490)	$	1,475	$	(1,015)
Loss before income tax	$	(20,629)	$	(1,475)	$	(22,104)
Net loss	$	(20,629)	$	(1,475)	$	(22,104)
Net loss attributable to stockholders	$	(33,583)	$	(1,475)	$	(35,058)
Net loss per share attributable to stockholders—basic and diluted	$	(0.30)	$	(0.01)	$	(0.31)


	Three Months Ended June 30, 2022						Six Months Ended June 30, 2022
	As Previously Reported		Revisions		As Revised		As Previously Reported		Revisions		As Revised
	(in thousands)
Interest expense, net	$	20,437	$	4,134	$	24,571	$	17,947	$	5,609	$	23,556
Loss before income tax	$	(9,697)	$	(4,134)	$	(13,831)	$	(30,326)	$	(5,609)	$	(35,935)
Net loss	$	(9,697)	$	(4,134)	$	(13,831)	$	(30,326)	$	(5,609)	$	(35,935)
Net loss attributable to stockholders	$	(37,003)	$	(4,134)	$	(41,137)	$	(70,586)	$	(5,609)	$	(76,195)
Net loss per share attributable to stockholders—basic and diluted	$	(0.32)	$	(0.04)	$	(0.36)	$	(0.62)	$	(0.05)	$	(0.67)

Consolidated Statements of Cash Flows


	Three Months Ended March 31, 2022
	As Previously Reported		Revisions		As Revised
	(in thousands)
Net loss	$	(20,629)	$	(1,475)	$	(22,104)
Unrealized gain on derivatives	$	(35,349)	$	1,475	$	(33,874)
Net cash used in operating activities	$	(92,129)	$	—	$	(92,129)


	Six Months Ended June 30, 2022
	As Previously Reported		Revisions		As Revised
	(in thousands)
Net loss	$	(30,326)	$	(5,609)	$	(35,935)
Unrealized gain on derivatives	$	(6,626)	$	5,609	$	(1,017)
Net cash used in operating activities	$	(162,343)	$	—	$	(162,343)

Consolidated Statements of Redeemable Noncontrolling Interests and Equity


	Accumulated Deficit
	As Previously Reported		Revisions		As Revised
	(in thousands)
December 31, 2021	$	(459,715)	$	—	$	(459,715)
Net loss attributable to stockholders	(33,583)		(1,475)		(35,058)
Equity in subsidiaries attributable to parent	69,769		—		69,769
March 31, 2022	(423,529)		(1,475)		(425,004)
Net loss attributable to stockholders	(37,003)		(4,134)		(41,137)
Equity in subsidiaries attributable to parent	83,316		—		83,316
Other, net	(1)		—		(1)
June 30, 2022	$	(377,217)	$	(5,609)	$	(382,826)

Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2023

Accounting Policies [Abstract]

Changes in the allowance for credit losses

The following table presents

the changes in the allowance for credit losses recorded against accounts receivable—trade, net in the unaudited condensed consolidated balance sheets:


	Three Months Ended June 30,				Six Months Ended June 30,
	2023		2022		2023		2022
	(in thousands)
Balance at beginning of period	$	1,887	$	1,065	$	1,676	$	1,044
Provision for current expected credit losses	1,177		614		2,105		1,089
Write off of uncollectible accounts	(969)		(546)		(1,748)		(1,052)
Recoveries	48		65		110		117

Balance at end of period	$	2,143	$	1,198	$	2,143	$	1,198

The following table presents the changes in the allowance for credit losses related to customer notes receivable as recorded in the unaudited condensed consolidated balance sheets:


	Three Months Ended June 30,				Six Months Ended June 30,
	2023		2022		2023		2022
	(in thousands)
Balance at beginning of period	$	91,459	$	47,818	$	81,248	$	41,138
Provision for current expected credit losses	10,878		9,225		21,089		15,869

Recoveries	—		—		—		36

Balance at end of period	$	102,337	$	57,043	$	102,337	$	57,043

Schedule of inventory

The following table presents the detail of inventory as recorded in other current assets in the unaudited condensed consolidated balance sheets:


	As of June 30, 2023		As of December 31, 2022


	(in thousands)
Energy storage systems and components	$	109,800	$	74,968
Homebuilder construction in progress	44,555		43,116
Modules and inverters	23,362		32,798

Meters and modems	1,492		1,166
Other	—		65
Total	$	179,209	$	152,113

Schedule of Financial Instruments Measured at Fair Value on a Recurring Basis

The following tables present our financial instruments measured at fair value on a recurring basis as of June 30, 2023 and December 31, 2022:


	As of June 30, 2023
	Total		Level 1		Level 2		Level 3
	(in thousands)
Financial assets:
Investments in solar receivables	$	68,362	$	—	$	—	$	68,362
Derivative assets	122,271		—		122,271		—
Total	$	190,633	$	—	$	122,271	$	68,362

Financial liabilities:
Contingent consideration	$	22,243	$	—	$	—	$	22,243

Total	$	22,243	$	—	$	—	$	22,243


	As of December 31, 2022
	Total		Level 1		Level 2		Level 3
	(in thousands)
Financial assets:
Investments in solar receivables	$	72,171	$	—	$	—	$	72,171
Derivative assets	112,712		—		112,712		—
Total	$	184,883	$	—	$	112,712	$	72,171

Financial liabilities:
Contingent consideration	$	26,787	$	—	$	—	$	26,787

Total	$	26,787	$	—	$	—	$	26,787

Schedule of Changes in Fair Value of Financial Assets on a Recurring Basis

The following table summarizes the change in the fair value of our financial assets

accounted for at fair value on a recurring basis using Level 3 inputs as recorded in other current assets and other assets (see Note 4, Detail of Certain Balance Sheet Captions) in the unaudited condensed consolidated balance sheets:


	Six Months Ended June 30,
	2023		2022
	(in thousands)
Balance at beginning of period	$	72,171	$	82,658
Additions	969		—
Settlements	(5,145)		(4,412)
Gain (loss) recognized in earnings	367		(3,376)

Balance at end of period	$	68,362	$	74,870

Schedule of changes in fair value of liabilities accounted for an a recurring basis

The following table summarizes the change in the fair value of our financial liabilities accounted for at fair value on a recurring basis using Level 3 inputs as recorded in other long-term liabilities in the unaudited condensed consolidated balance sheets:


	Six Months Ended June 30,
	2023		2022
	(in thousands)
Balance at beginning of period	$	26,787	$	67,895

Settlements	(10,831)		(16,014)
(Gain) loss recognized in earnings	6,287		(17,821)

Balance at end of period	$	22,243	$	34,060

The following table summarizes the significant unobservable inputs used in the valuation of our liabilities as of June 30, 2023 using Level 3 inputs:

Unobservable
Input

Weighted
Average

Liabilities:

Contingent consideration - installation earnout

Volatility

35.00%

Revenue risk premium

15.30%

Risk-free discount rate

5.00%

Contingent consideration - microgrid earnout

Probability of success

25.00%

Risk-free discount rate

5.00%

Significant increases or decreases in the volatility, revenue risk premium, probability of success or risk-free discount rate in isolation could result in a significantly higher or lower fair value measurement.

Disaggregation of revenue

The following table presents the detail of revenue as recorded in the unaudited condensed consolidated statements of operations:


	Three Months Ended June 30,				Six Months Ended June 30,
	2023		2022		2023		2022
	(in thousands)
PPA revenue	$	39,155	$	31,159	$	60,901	$	52,344
Lease revenue	34,159		24,025		65,502		45,805
Inventory sales revenue	26,492		54,245		86,406		54,245
Service revenue	19,981		1,726		35,959		2,715
Solar renewable energy certificate revenue	15,055		14,687		22,846		20,931
Cash sales revenue	21,724		15,414		38,543		26,762
Loan revenue	8,112		4,194		15,255		7,570
Other revenue	1,699		1,562		2,661		2,362
Total	$	166,377	$	147,012	$	328,073	$	212,734

Deferred revenue schedule

The following table presents the detail of deferred revenue as recorded in other current liabilities and other long-term liabilities in the unaudited condensed consolidated balance sheets:


	As of June 30, 2023		As of December 31, 2022


	(in thousands)
Loans	$	783,789	$	586,128
PPAs and leases	30,235		24,893
Solar receivables	4,471		4,602

Other	11		—
Total (1)	$	818,506	$	615,623

(1) Of this amount, $41.3 million and $30.2 million is recorded in other current liabilities as of June 30, 2023 and December 31, 2022, respectively.

Property and Equipment (Tables)

6 Months Ended

Jun. 30, 2023

Property, Plant and Equipment [Abstract]

Property and equipment

The following table presents the detail of property and equipment, net as recorded in the unaudited condensed consolidated balance sheets:


	Useful Lives	As of June 30, 2023		As of December 31, 2022


	(in years)	(in thousands)
Solar energy systems and energy storage systems	35	$	4,295,288	$	3,719,727
Construction in progress		528,008		329,893
Asset retirement obligations	30	64,636		57,063
Information technology systems	3	84,871		72,797
Computers and equipment	3-5	6,371		4,976
Leasehold improvements	3-6	6,015		5,558
Furniture and fixtures	7	1,172		1,172
Vehicles	4-5	1,640		1,640
Other	5-6	158		157
Property and equipment, gross		4,988,159		4,192,983
Less: accumulated depreciation		(475,649)		(408,182)
Property and equipment, net		$	4,512,510	$	3,784,801

Detail of Certain Balance Sheet Captions (Tables)

6 Months Ended

Jun. 30, 2023

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of other current assets

The following table presents the detail of other current assets as recorded in the unaudited condensed consolidated balance sheets:


	As of June 30, 2023		As of December 31, 2022


	(in thousands)
Inventory	$	179,209	$	152,113
Current portion of customer notes receivable	150,966		114,910
Restricted cash	37,825		51,733
Prepaid assets	29,713		17,492
Deferred receivables	10,388		7,392
Current portion of investments in solar receivables	7,804		7,107


Other	685		553
Total	$	416,590	$	351,300

Schedule of other assets

The following table presents the detail of other assets as recorded in the unaudited condensed consolidated balance sheets:


	As of June 30, 2023		As of December 31, 2022


	(in thousands)
Construction in progress - customer notes receivable	$	247,588	$	382,611
Restricted cash	180,718		133,584
Exclusivity and other bonus arrangements with dealers, net	173,799		121,313
Investments in solar receivables	60,558		65,064
Straight-line revenue adjustment, net	57,803		53,086
Other	237,312		206,233
Total	$	957,778	$	961,891

Schedule of other current liabilities

The following table presents the detail of other current liabilities as recorded in the unaudited condensed consolidated balance sheets:


	As of June 30, 2023		As of December 31, 2022


	(in thousands)
Interest payable	$	42,910	$	35,258
Deferred revenue	41,277		30,172
Current portion of operating and finance lease liability	3,455		3,247
Current portion of performance guarantee obligations	2,335		2,495
Other	4,065		334
Total	$	94,042	$	71,506

Asset Retirement Obligations ("ARO") (Tables)

6 Months Ended

Jun. 30, 2023

Asset Retirement Obligation Disclosure [Abstract]

Schedule of changes in AROs

The following table presents the changes in AROs as recorded in other long-term liabilities in the unaudited condensed consolidated balance sheets:



	Six Months Ended June 30,
	2023		2022
	(in thousands)
Balance at beginning of period	$	69,869	$	54,396
Additional obligations incurred	7,604		5,390
Accretion expense	2,234		1,735

Other	(44)		(58)
Balance at end of period	$	79,663	$	61,463

Customer Notes Receivable (Tables)

6 Months Ended

Jun. 30, 2023

Receivables [Abstract]

Fair values of notes receivable and corresponding carrying amounts

The following table presents the detail of customer notes receivable as recorded in the unaudited condensed consolidated balance sheets and the corresponding fair values:


	As of June 30, 2023		As of December 31, 2022


	(in thousands)
Customer notes receivable	$	3,481,602	$	2,662,307
Allowance for credit losses	(102,337)		(81,248)
Customer notes receivable, net	$	3,379,265	$	2,581,059
Estimated fair value, net	$	3,316,523	$	2,554,948

Changes in the allowance for credit losses

The following table presents

the changes in the allowance for credit losses recorded against accounts receivable—trade, net in the unaudited condensed consolidated balance sheets:


	Three Months Ended June 30,				Six Months Ended June 30,
	2023		2022		2023		2022
	(in thousands)
Balance at beginning of period	$	1,887	$	1,065	$	1,676	$	1,044
Provision for current expected credit losses	1,177		614		2,105		1,089
Write off of uncollectible accounts	(969)		(546)		(1,748)		(1,052)
Recoveries	48		65		110		117

Balance at end of period	$	2,143	$	1,198	$	2,143	$	1,198

The following table presents the changes in the allowance for credit losses related to customer notes receivable as recorded in the unaudited condensed consolidated balance sheets:


	Three Months Ended June 30,				Six Months Ended June 30,
	2023		2022		2023		2022
	(in thousands)
Balance at beginning of period	$	91,459	$	47,818	$	81,248	$	41,138
Provision for current expected credit losses	10,878		9,225		21,089		15,869

Recoveries	—		—		—		36

Balance at end of period	$	102,337	$	57,043	$	102,337	$	57,043

Financing receivable, past due

The following table presents the aging of the amortized cost of customer notes receivable:


	As of June 30, 2023		As of December 31, 2022


	(in thousands)
1-90 days past due	$	116,075	$	91,668
91-180 days past due	26,263		16,859
Greater than 180 days past due	48,912		14,504
Total past due	191,250		123,031
Not past due	3,290,352		2,539,276
Total	$	3,481,602	$	2,662,307

Financing receivable amortized cost of customer notes receivable

The following table presents the amortized cost by origination year of our customer notes receivable based on payment activity:


	Amortized Cost by Origination Year
	2023		2022		2021		2020		2019		Prior		Total
	(in thousands)
Payment performance:
Performing	$	882,708	$	1,384,684	$	714,073	$	218,295	$	110,807	$	122,123	$	3,432,690
Nonperforming (1)	—		19,007		13,534		4,224		4,388		7,759		48,912
Total	$	882,708	$	1,403,691	$	727,607	$	222,519	$	115,195	$	129,882	$	3,481,602

(1) A nonperforming loan is a loan in which the customer is in default and has not made any scheduled principal or interest payments for 181 days or more.

Long-Term Debt (Tables)

6 Months Ended

Jun. 30, 2023

Debt Disclosure [Abstract]

Schedule of long-term debt instruments

The following table presents the detail of long-term debt, net as recorded in the unaudited condensed consolidated balance sheets:


	Six Months Ended June 30, 2023 Weighted Average Effective Interest Rates		As of June 30, 2023				Year Ended December 31, 2022 Weighted Average Effective Interest Rates		As of December 31, 2022
			Long-term		Current				Long-term		Current
	(in thousands, except interest rates)
SEI
0.25% convertible senior notes	0.71	%	$	575,000	$	—	0.71	%	$	575,000	$	—
2.625% convertible senior notes	3.05	%	600,000		—		3.11	%	600,000		—
Debt discount, net			(21,762)		—				(24,324)		—
Deferred financing costs, net			(856)		—				(920)		—
Sunnova Energy Corporation
Note payable	8.34	%	—		4,924				—		—
5.875% senior notes	6.59	%	400,000		—		6.52	%	400,000		—
Debt discount, net			(3,141)		—				(3,767)		—


Deferred financing costs, net			(6,349)	—			(7,339)	—
EZOP
Revolving credit facility	8.51	%	721,000	—	5.10	%	500,000	—
Debt discount, net			(393)	—			(532)	—
HELII
Solar asset-backed notes	5.69	%	199,339	8,985	5.69	%	204,016	8,632
Debt discount, net			(27)	—			(30)	—
Deferred financing costs, net			(3,255)	—			(3,591)	—
RAYSI
Solar asset-backed notes	5.62	%	102,396	11,432	5.54	%	105,878	9,957
Debt discount, net			(842)	—			(960)	—
Deferred financing costs, net			(3,225)	—			(3,451)	—
HELIII
Solar loan-backed notes	4.47	%	90,342	10,208	4.42	%	94,247	10,438
Debt discount, net			(1,393)	—			(1,536)	—
Deferred financing costs, net			(1,337)	—			(1,474)	—
TEPH
Revolving credit facility	10.03	%	473,840	—	7.74	%	425,700	—
Debt discount, net			(1,510)	—			(2,043)	—
SOLI
Solar asset-backed notes	3.95	%	342,701	14,807	3.92	%	348,962	16,063
Debt discount, net			(81)	—			(87)	—
Deferred financing costs, net			(6,302)	—			(6,827)	—
HELIV
Solar loan-backed notes	4.19	%	101,472	11,169	4.15	%	105,655	11,494
Debt discount, net			(488)	—			(564)	—
Deferred financing costs, net			(2,279)	—			(2,609)	—
AP8
Revolving credit facility	9.61	%	177,000	—	20.52	%	74,535	465
SOLII
Solar asset-backed notes	3.44	%	226,853	7,003	3.41	%	232,276	6,409
Debt discount, net			(60)	—			(64)	—
Deferred financing costs, net			(4,263)	—			(4,576)	—
HELV
Solar loan-backed notes	2.49	%	139,219	13,925	2.47	%	143,940	14,367
Debt discount, net			(614)	—			(690)	—
Deferred financing costs, net			(2,378)	—			(2,661)	—
SOLIII
Solar asset-backed notes	2.83	%	266,311	16,776	2.78	%	275,779	16,632
Debt discount, net			(109)	—			(117)	—
Deferred financing costs, net			(5,247)	—			(5,616)	—
HELVI
Solar loan-backed notes	2.12	%	165,314	13,947	2.08	%	167,669	16,770
Debt discount, net			(36)	—			(40)	—
Deferred financing costs, net			(2,629)	—			(2,909)	—
HELVII
Solar loan-backed notes	2.53	%	125,963	11,786	2.50	%	126,856	16,058
Debt discount, net			(35)	—			(38)	—
Deferred financing costs, net			(2,000)	—			(2,193)	—
HELVIII
Solar loan-backed notes	3.64	%	245,888	25,490	3.54	%	250,014	31,099
Debt discount, net			(4,812)	—			(5,267)	—
Deferred financing costs, net			(3,751)	—			(4,080)	—
SOLIV
Solar asset-backed notes	5.94	%	332,915	8,240	5.76	%	338,251	8,080


Debt discount, net			(10,324)		—				(11,190)		—
Deferred financing costs, net			(7,395)		—				(7,996)		—
HELIX
Solar loan-backed notes	5.68	%	191,508		27,083		5.46	%	193,837		29,632
Debt discount, net			(3,312)		—				(3,589)		—
Deferred financing costs, net			(3,062)		—				(3,303)		—
HELX
Solar loan-backed notes	7.36	%	201,011		24,889		6.23	%	162,301		18,335
Debt discount, net			(18,779)		—				(12,459)		—
Deferred financing costs, net			(3,489)		—				(3,319)		—
IS
Revolving credit facility	8.40	%	37,100		—				—		—

SOLV
Solar asset-backed notes	6.70	%	316,566		6,934				—		—
Debt discount, net			(17,195)		—				—		—
Deferred financing costs, net			(7,515)		—				—		—
HELXI
Solar loan-backed notes	6.00	%	261,101		24,370				—		—
Debt discount, net			(12,894)		—				—		—
Deferred financing costs, net			(5,777)		—				—		—




Total			$	6,123,923	$	241,968			$	5,194,755	$	214,431

Schedule of carrying values and estimated fair values of debt instruments

Fair Values of Long-Term Debt. The fair values of our long-term debt and the corresponding carrying amounts are as

follows:


	As of June 30, 2023				As of December 31, 2022


	Carrying Value		Estimated Fair Value		Carrying Value		Estimated Fair Value
	(in thousands)
SEI 0.25% convertible senior notes	$	575,000	$	509,103	$	575,000	$	511,733
SEI 2.625% convertible senior notes	600,000		572,133		600,000		574,693
Sunnova Energy Corporation note payable	4,924		4,924		—		—
Sunnova Energy Corporation 5.875% senior notes	400,000		357,176		400,000		359,283
EZOP revolving credit facility	721,000		721,000		500,000		500,000
HELII solar asset-backed notes	208,324		200,362		212,648		206,045
RAYSI solar asset-backed notes	113,828		102,976		115,835		104,594
HELIII solar loan-backed notes	100,550		89,725		104,685		93,706
TEPH revolving credit facility	473,840		473,840		425,700		425,700
SOLI solar asset-backed notes	357,508		310,552		365,025		313,174
HELIV solar loan-backed notes	112,641		97,524		117,149		100,913
AP8 revolving credit facility	177,000		177,000		75,000		75,000
SOLII solar asset-backed notes	233,856		190,429		238,685		189,728
HELV solar loan-backed notes	153,144		133,109		158,307		135,408
SOLIII solar asset-backed notes	283,087		237,785		292,411		237,425
HELVI solar loan-backed notes	179,261		153,633		184,439		157,289
HELVII solar loan-backed notes	137,749		120,098		142,914		124,476
HELVIII solar loan-backed notes	271,378		243,427		281,113		252,483
SOLIV solar asset-backed notes	341,155		326,515		346,331		334,335
HELIX solar loan-backed notes	218,591		206,158		223,469		210,070
HELX solar loan-backed notes	225,900		222,457		180,636		183,165
IS revolving credit facility	37,100		37,100		—		—
SOLV solar asset-backed notes	323,500		314,433		—		—
HELXI solar loan-backed notes	285,471		277,951		—		—


Total (1)	$	6,534,807	$	6,079,410	$	5,539,347	$	5,089,220

(1) Amounts exclude the net deferred financing costs (classified as debt) and net debt discounts of $168.9 million and $130.2 million as of June 30, 2023 and December 31, 2022, respectively.

- Definition

Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 69B
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481568/470-20-55-69B

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 69E
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481568/470-20-55-69E

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 3
-Subparagraph (SX 210.12-04(a))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480678/235-10-S99-3

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
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-URI https://asc.fasb.org//1943274/2147482925/835-30-45-2

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Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 9: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 942
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-URI https://asc.fasb.org//1943274/2147480848/942-470-50-3

Reference 10: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 11: http://fasb.org/us-gaap/role/ref/legacyRef
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481112/505-10-50-7

+ Details

Derivative Instruments (Tables)

6 Months Ended

Jun. 30, 2023

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Outstanding derivative instruments

The following table presents a summary of the outstanding derivative instruments:


	As of June 30, 2023					As of December 31, 2022


	Effective Date	Termination Date	Fixed Interest Rate	Aggregate Notional Amount		Effective Date	Termination Date	Fixed Interest Rate	Aggregate Notional Amount
	(in thousands, except interest rates)
EZOP	June 2022 - February 2023	October 2031 - November 2035	0.890%	$	609,294	June 2022 - July 2022	July 2034	0.890%	$	489,477
TEPH	July 2022 - July 2023	October 2031 - October 2041	2.620% - 3.472%	312,200		July 2022 - December 2022	January 2035 - April 2041	1.520% - 2.630%	383,749
AP8	November 2022 - June 2023	September 2025	4.250%	185,000		November 2022	September 2025	4.250%	75,000
Total				$	1,106,494				$	948,226

Fair value of interest rate swaps

The following table presents the fair value of the interest rate swaps and caps as recorded in the unaudited condensed consolidated balance sheets:


	As of June 30, 2023		As of December 31, 2022


	(in thousands)
Other assets	$	122,271	$	112,712

The following table presents the impact of the interest rate swaps and caps as recorded in the unaudited condensed consolidated statements of operations:


	Three Months Ended June 30,				Six Months Ended June 30,
	2023		2022		2023		2022
	(in thousands)
Realized gain	$	(9,062)	$	(46,097)	$	(15,769)	$	(45,506)
Unrealized (gain) loss	(15,605)		32,857		8,011		(1,017)
Total	$	(24,667)	$	(13,240)	$	(7,758)	$	(46,523)

Equity-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2023

Share-Based Payment Arrangement [Abstract]

Stock option activity

The following table summarizes stock option activity:


	Number of Stock Options	Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (Years)	Weighted Average Grant Date Fair Value		Aggregate Intrinsic Value
							(in thousands)




Outstanding, December 31, 2022	3,259,459	$	18.48	4.75			$	10,341
Granted	942,348	$	15.13	9.74	$	8.85
Exercised	(31,360)	$	13.22				$	132
Forfeited	(138,941)	$	22.02		$	11.80
Outstanding, June 30, 2023	4,031,506	$	17.61	5.36			$	13,561
Exercisable, June 30, 2023	2,663,597	$	16.43	3.32			$	10,734
Vested and expected to vest, June 30, 2023	4,031,506	$	17.61	5.36			$	13,561

Non-vested, June 30, 2023	1,367,909				$	10.90

Restricted stock unit activity

The following table summarizes restricted stock unit activity:


	Number of Restricted Stock Units	Weighted Average Grant Date Fair Value




Outstanding, December 31, 2022	1,609,615	$	20.62
Granted	1,810,918	$	14.53
Vested	(816,567)	$	18.34
Forfeited	(209,348)	$	18.28
Outstanding, June 30, 2023	2,394,618	$	17.00

Basic and Diluted Net Loss Per Share (Tables)

6 Months Ended

Jun. 30, 2023

Earnings Per Share [Abstract]

Schedule of basic and diluted net loss per share

The following table sets forth the computation of our basic and diluted net loss per share:


	Three Months Ended June 30,				Six Months Ended June 30,
	2023		2022		2023		2022
	(in thousands, except share and per share amounts)





Net loss attributable to stockholders—basic and diluted	$	(86,091)	$	(41,137)	$	(167,174)	$	(76,195)

Net loss per share attributable to stockholders—basic and diluted	$	(0.74)	$	(0.36)	$	(1.45)	$	(0.67)
Weighted average common shares outstanding—basic and diluted	116,236,741		114,548,970		115,658,570		114,027,097

Schedule of antidilutive weighted average shares

The following table presents the weighted average shares of common stock equivalents that were excluded from the computation of diluted net loss per share for the periods presented because including them would have been anti-dilutive:


	Three Months Ended June 30,		Six Months Ended June 30,
	2023	2022	2023	2022
Equity-based compensation awards	6,460,556	5,192,317	5,753,120	4,841,388

Convertible senior notes	34,150,407	16,628,073	34,150,407	16,628,073

Commitments and Contingencies (Tables)

6 Months Ended

Jun. 30, 2023

Commitments and Contingencies Disclosure [Abstract]

Schedule of performance guarantee obligations

The changes in our aggregate performance guarantee obligations are as follows:



	Six Months Ended June 30,
	2023		2022
	(in thousands)
Balance at beginning of period	$	4,845	$	5,293
Accruals	2,485		1,052

Settlements	(2,791)		(3,161)
Balance at end of period	$	4,539	$	3,184

Lease expense

The following table presents the detail of lease expense as recorded in general and administrative expense in the unaudited condensed consolidated statements of operations:


	Three Months Ended June 30,				Six Months Ended June 30,
	2023		2022		2023		2022
	(in thousands)
Operating lease expense	$	692	$	693	$	1,384	$	1,385
Finance lease expense:
Amortization expense	249		186		479		361
Interest on lease liabilities	20		13		38		27
Short-term lease expense	39		33		66		60
Variable lease expense	235		267		468		522

Total	$	1,235	$	1,192	$	2,435	$	2,355

Other information related to leases was as follows:


	Six Months Ended June 30,
	2023		2022
	(in thousands)
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases (1)	$	1,319	$	809
Operating cash flows from finance leases	$	38	$	27
Financing cash flows from finance leases	$	439	$	406
Right-of-use assets obtained in exchange for lease obligations:

Finance leases	$	901	$	570

(1)Includes reimbursements in 2023 and 2022 of approximately $225,000 and $45,000, respectively, for leasehold improvements.


	As of June 30, 2023		As of December 31, 2022


Weighted average remaining lease term (years):
Operating leases	6.13		6.60
Finance leases	4.54		2.86
Weighted average discount rate:
Operating leases	3.95	%	3.95	%
Finance leases	5.27	%	4.37	%

Lease assets and liabilities

The following table presents the detail of right-of-use assets and lease liabilities as recorded in other assets and other current liabilities/other long-term liabilities, respectively, in the unaudited condensed consolidated balance sheets:


	As of June 30, 2023		As of December 31, 2022


	(in thousands)
Right-of-use assets:
Operating leases	$	13,677	$	14,706
Finance leases	2,897		2,476
Total right-of-use assets	$	16,574	$	17,182

Current lease liabilities:
Operating leases	$	2,510	$	2,451
Finance leases	945		796
Long-term leases liabilities:
Operating leases	14,729		15,751
Finance leases	1,120		957
Total lease liabilities	$	19,304	$	19,955

Operating lease, future minimum lease payments

Future minimum lease payments under our non-cancelable leases as of June 30, 2023 were as follows:


	Operating Leases		Finance Leases
	(in thousands)
Remaining 2023	$	1,607	$	560
2024	3,118		881
2025	3,168		504
2026	3,236		220
2027	3,304		56
2028 and thereafter	5,485		—
Total	19,918		2,221
Amount representing interest	(2,283)		(156)
Amount representing leasehold incentives	(396)		—
Present value of future payments	17,239		2,065
Current portion of lease liability	(2,510)		(945)
Long-term portion of lease liability	$	14,729	$	1,120

Other commitments

Dealer Commitments. As of June 30, 2023 and December 31, 2022, the net unamortized balance of payments to dealers for exclusivity and other similar arrangements was $173.8 million and $121.3 million, respectively. Under these agreements, we paid $31.1 million and $13.7 million during the three months ended June 30, 2023 and 2022, respectively, and we paid $55.7 million and $26.9 million during the six months ended June 30, 2023 and 2022, respectively. We could be obligated to make maximum payments, excluding additional amounts payable on a per watt basis if even higher thresholds are met, as follows:


	Dealer Commitments
	(in thousands)
Remaining 2023	$	13,235
2024	75,691
2025	60,561
2026	36,904
2027	30,000
2028 and thereafter	—
Total	$	216,391

Future commitments

Future commitments as of June 30, 2023 were as follows:


	Information Technology Commitments
	(in thousands)
Remaining 2023	$	24,111
2024	7,049
2025	1,682
2026	—
2027	—
2028 and thereafter	—
Total	$	32,842

Description of Business and Basis of Presentation - (Details) customer in Thousands, $ in Billions	6 Months Ended	47 Months Ended
	Jun. 30, 2023 renewalOption customer state	Jun. 30, 2023 USD ($) state
Subsidiary, Sale of Stock [Line Items]
Number of customers \| customer	348
Number of states in which entity operates (more than) \| state	45	45
Maximum renewal term	10 years
Equity cure contribution \| $		$ 13.3
Solar Service Agreement \| Minimum
Subsidiary, Sale of Stock [Line Items]
Agreement term	10 years
Solar Service Agreement \| Maximum
Subsidiary, Sale of Stock [Line Items]
Agreement term	25 years
Lease and Power Purchase Agreement (PPA) \| Lease Agreement, Option One
Subsidiary, Sale of Stock [Line Items]
Number of options to renew term	2
Renewal term	5 years
Lease and Power Purchase Agreement (PPA) \| Lease Agreement, Option Two
Subsidiary, Sale of Stock [Line Items]
Number of options to renew term	1
Renewal term	10 years

Description of Business and Basis of Presentation - Consolidated Balance Sheets Revision (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022	Jun. 30, 2022	Mar. 31, 2022
Change in Accounting Estimate [Line Items]
Other assets	$ 957,778	$ 961,891	$ 797,253	$ 660,981
Accumulated deficit	$ (272,186)	$ (364,782)	(382,826)	(425,004)
As Previously Reported
Change in Accounting Estimate [Line Items]
Other assets			802,862	662,456
Accumulated deficit			(377,217)	(423,529)
Revisions
Change in Accounting Estimate [Line Items]
Other assets			(5,609)	(1,475)
Accumulated deficit			$ (5,609)	$ (1,475)

- Definition

Amount of accumulated undistributed earnings (deficit).

+ References + Details

Description of Business and Basis of Presentation - Consolidated Statements of Operations Revision (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2023	Jun. 30, 2022
Change in Accounting Estimate [Line Items]
Interest expense, net	$ 56,947	$ 24,571	$ (1,015)	$ 142,554	$ 23,556
Loss before income tax	(93,598)	(13,831)	(22,104)	(203,434)	(35,935)
Net loss	(100,781)	(13,831)	(22,104)	(211,127)	(35,935)
Net loss attributable to stockholders	$ (86,091)	$ (41,137)	$ (35,058)	$ (167,174)	$ (76,195)
Net loss per share attributable to stockholders - basic (in USD per share)	$ (0.74)	$ (0.36)	$ (0.31)	$ (1.45)	$ (0.67)
Net loss per share attributable to stockholders - diluted (in USD per share)	$ (0.74)	$ (0.36)	$ (0.31)	$ (1.45)	$ (0.67)
As Previously Reported
Change in Accounting Estimate [Line Items]
Interest expense, net		$ 20,437	$ (2,490)		$ 17,947
Loss before income tax		(9,697)	(20,629)		(30,326)
Net loss		(9,697)	(20,629)		(30,326)
Net loss attributable to stockholders		$ (37,003)	$ (33,583)		$ (70,586)
Net loss per share attributable to stockholders - basic (in USD per share)		$ (0.32)	$ (0.30)		$ (0.62)
Net loss per share attributable to stockholders - diluted (in USD per share)		$ (0.32)	$ (0.30)		$ (0.62)
Revisions
Change in Accounting Estimate [Line Items]
Interest expense, net		$ 4,134	$ 1,475		$ 5,609
Loss before income tax		(4,134)	(1,475)		(5,609)
Net loss		(4,134)	(1,475)		(5,609)
Net loss attributable to stockholders		$ (4,134)	$ (1,475)		$ (5,609)
Net loss per share attributable to stockholders - basic (in USD per share)		$ (0.04)	$ (0.01)		$ (0.05)
Net loss per share attributable to stockholders - diluted (in USD per share)		$ (0.04)	$ (0.01)		$ (0.05)

- Definition

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 250
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483443/250-10-50-3

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 260
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 15
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482635/260-10-55-15

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 815
-SubTopic 40
-Name Accounting Standards Codification
-Section 65
-Paragraph 1
-Subparagraph (e)(4)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480175/815-40-65-1

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 815
-SubTopic 40
-Name Accounting Standards Codification
-Section 65
-Paragraph 1
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480175/815-40-65-1

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 250
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 11
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483443/250-10-50-11

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 250
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 11
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483443/250-10-50-11

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 250
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 7
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483443/250-10-50-7

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Topic 260
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
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+ Details

Description of Business and Basis of Presentation - Consolidated Statement of Cash Flows Revision (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2023	Jun. 30, 2022
Change in Accounting Estimate [Line Items]
Net loss	$ (100,781)	$ (13,831)	$ (22,104)	$ (211,127)	$ (35,935)
Unrealized (gain) loss on derivatives			(33,874)	8,011	(1,017)
Net cash used in operating activities			(92,129)	$ (182,542)	(162,343)
As Previously Reported
Change in Accounting Estimate [Line Items]
Net loss		(9,697)	(20,629)		(30,326)
Unrealized (gain) loss on derivatives			(35,349)		(6,626)
Net cash used in operating activities			(92,129)		(162,343)
Revisions
Change in Accounting Estimate [Line Items]
Net loss		$ (4,134)	(1,475)		(5,609)
Unrealized (gain) loss on derivatives			1,475		5,609
Net cash used in operating activities			$ 0		$ 0

- Definition

The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

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- Definition

The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period.

+ References + Details

Description of Business and Basis of Presentation - Consolidated Statements of Redeemable Noncontrolling Interests and Equity Revision (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Mar. 31, 2022
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stockholders' equity, beginning balance	$ 1,767,262	$ 1,721,713	$ 1,505,948	$ 1,476,277
Net loss attributable to stockholders	(101,641)	(89,942)	(18,394)	(19,672)
Equity in subsidiaries attributable to parent	111,121	21,528	10,168	173
Other, net	(1,073)	(110)	(2,011)	174
Stockholders' equity, ending balance	1,888,044	1,767,262	1,620,584	1,505,948
Accumulated Deficit
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stockholders' equity, beginning balance	(366,972)	(364,782)	(425,004)	(459,715)
Net loss attributable to stockholders	(86,091)	(81,083)	(41,137)	(35,058)
Equity in subsidiaries attributable to parent	180,877	78,893	83,316	69,769
Other, net			(1)
Stockholders' equity, ending balance	$ (272,186)	$ (366,972)	(382,826)	(425,004)
Accumulated Deficit \| As Previously Reported
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stockholders' equity, beginning balance			(423,529)	(459,715)
Net loss attributable to stockholders			(37,003)	(33,583)
Equity in subsidiaries attributable to parent			83,316	69,769
Other, net			(1)
Stockholders' equity, ending balance			(377,217)	(423,529)
Accumulated Deficit \| Revisions
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stockholders' equity, beginning balance			(1,475)	0
Net loss attributable to stockholders			(4,134)	(1,475)
Equity in subsidiaries attributable to parent			0	0
Other, net			0
Stockholders' equity, ending balance			$ (5,609)	$ (1,475)

- Definition

Amount of equity (deficit) attributable to parent and noncontrolling interest. Excludes temporary equity.

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-Subparagraph (e)
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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
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-Section 50
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-URI https://asc.fasb.org//1943274/2147482765/220-10-50-5

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-Name Accounting Standards Codification
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Reference 28: http://www.xbrl.org/2003/role/disclosureRef
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-Topic 946
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Reference 30: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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-URI https://asc.fasb.org//1943274/2147480767/946-205-45-3

Reference 31: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
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-URI https://asc.fasb.org//1943274/2147481004/946-505-50-3

Reference 32: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
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-Name Accounting Standards Codification
-Section S99
-Paragraph 1
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-URI https://asc.fasb.org//1943274/2147479617/946-210-S99-1

Reference 33: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
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Reference 36: http://www.xbrl.org/2003/role/disclosureRef
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Reference 37: http://www.xbrl.org/2003/role/disclosureRef
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-Paragraph 1
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Reference 38: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 235
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-Paragraph 1
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-URI https://asc.fasb.org//1943274/2147480678/235-10-S99-1

Reference 39: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 323
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481687/323-10-50-3

Reference 40: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 825
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 28
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482907/825-10-50-28

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-Name Accounting Standards Codification
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-URI https://asc.fasb.org//1943274/2147481175/810-10-55-4I

+ Details

Significant Accounting Policies - Allowance for Credit Losses (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	$ 1,887	$ 1,065	$ 1,676	$ 1,044
Provision for current expected credit losses	1,177	614	2,105	1,089
Write off of uncollectible accounts	(969)	(546)	(1,748)	(1,052)
Recoveries	48	65	110	117
Balance at end of period	$ 2,143	$ 1,198	$ 2,143	$ 1,198

Significant Accounting Policies - Inventory (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Inventory [Line Items]
Inventory	$ 179,209	$ 152,113
Energy storage systems and components
Inventory [Line Items]
Inventory	109,800	74,968
Homebuilder construction in progress
Inventory [Line Items]
Inventory	44,555	43,116
Modules and inverters
Inventory [Line Items]
Inventory	23,362	32,798
Meters and modems
Inventory [Line Items]
Inventory	1,492	1,166
Other
Inventory [Line Items]
Inventory	$ 0	$ 65

Significant Accounting Policies - Schedule of Fair Value of Recurring Financial Instruments (Details) - Fair Value, Recurring - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Financial assets:
Investments in solar receivables	$ 68,362	$ 72,171
Derivative assets	122,271	112,712
Total assets	190,633	184,883
Financial liabilities:
Contingent consideration	22,243	26,787
Total liabilities	22,243	26,787
Fair Value, Inputs, Level 1
Financial assets:
Investments in solar receivables	0	0
Derivative assets	0	0
Total assets	0	0
Financial liabilities:
Contingent consideration	0	0
Total liabilities	0	0
Fair Value, Inputs, Level 2
Financial assets:
Investments in solar receivables	0	0
Derivative assets	122,271	112,712
Total assets	122,271	112,712
Financial liabilities:
Contingent consideration	0	0
Total liabilities	0	0
Fair Value, Inputs, Level 3
Financial assets:
Investments in solar receivables	68,362	72,171
Derivative assets	0	0
Total assets	68,362	72,171
Financial liabilities:
Contingent consideration	22,243	26,787
Total liabilities	$ 22,243	$ 26,787

Significant Accounting Policies - Schedule of Investment in Solar Receivables Fair Value (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginning of period	$ 72,171	$ 82,658
Additions	969	0
Settlements	(5,145)	(4,412)
Gain (loss) recognized in earnings	367	(3,376)
Balance at end of period	$ 68,362	$ 74,870
Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Other Operating Income (Expense), Net	Other Operating Income (Expense), Net

Significant Accounting Policies - Schedule of changes in fair value of liabilities accounted for an a recurring basis (Details) - Contingent Consideration Liability - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Balance at beginning of period	$ 26,787	$ 67,895
Settlements	(10,831)	(16,014)
(Gain) loss recognized in earnings	6,287	(17,821)
Balance at end of period	$ 22,243	$ 34,060

Significant Accounting Policies - Schedule of Fair Value Unobservable Inputs (Details) - Fair Value, Inputs, Level 3 - Weighted Average	Jun. 30, 2023
Volatility
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Contingent consideration - installation earnout	35.00%
Revenue risk premium
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Contingent consideration - installation earnout	15.30%
Discount rate
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Contingent consideration - installation earnout	5.00%
Contingent consideration - microgrid earnout	5.00%
Probability of success
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Contingent consideration - microgrid earnout	25.00%

Significant Accounting Policies - Schedule of Detailed Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Disaggregation of Revenue [Line Items]
Revenue	$ 166,377	$ 147,012	$ 328,073	$ 212,734
PPA revenue
Disaggregation of Revenue [Line Items]
Revenue	39,155	31,159	60,901	52,344
Lease revenue
Disaggregation of Revenue [Line Items]
Revenue	34,159	24,025	65,502	45,805
Inventory sales revenue
Disaggregation of Revenue [Line Items]
Revenue	26,492	54,245	86,406	54,245
Service revenue
Disaggregation of Revenue [Line Items]
Revenue	19,981	1,726	35,959	2,715
Solar renewable energy certificate revenue
Disaggregation of Revenue [Line Items]
Revenue	15,055	14,687	22,846	20,931
Cash sales revenue
Disaggregation of Revenue [Line Items]
Revenue	21,724	15,414	38,543	26,762
Loan revenue
Disaggregation of Revenue [Line Items]
Revenue	8,112	4,194	15,255	7,570
Other revenue
Disaggregation of Revenue [Line Items]
Revenue	$ 1,699	$ 1,562	$ 2,661	$ 2,362

Significant Accounting Policies - Narrative (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2023 USD ($) kWh FICO_score renewalOption	Jun. 30, 2022 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Disaggregation of Revenue [Line Items]
Average age of solar systems	4 years
Inventory	$ 179,209		$ 152,113
Threshold period past due, writeoff	180 days
Deferred revenue	$ 818,506		615,623	$ 297,800
Revenue recognized	12,000	$ 8,100
Self-insured claims liability	3,500
Solar Renewable Energy Certificates
Disaggregation of Revenue [Line Items]
Inventory	$ 0		0
PPA revenue \| Lease Agreement, Option One
Disaggregation of Revenue [Line Items]
Renewal term	5 years
Number of options to renew term \| renewalOption	2
PPA revenue \| Lease Agreement, Option Two
Disaggregation of Revenue [Line Items]
Renewal term	10 years
Number of options to renew term \| renewalOption	1
PPA revenue \| Minimum
Disaggregation of Revenue [Line Items]
Agreement term	20 years
PPA revenue \| Maximum
Disaggregation of Revenue [Line Items]
Agreement term	25 years
Renewal term	10 years
Lease revenue \| Lease Agreement, Option One
Disaggregation of Revenue [Line Items]
Renewal term	5 years
Number of options to renew term \| renewalOption	2
Lease revenue \| Lease Agreement, Option Two
Disaggregation of Revenue [Line Items]
Renewal term	10 years
Number of options to renew term \| renewalOption	1
Lease revenue \| Minimum
Disaggregation of Revenue [Line Items]
Agreement term	20 years
Lease revenue \| Maximum
Disaggregation of Revenue [Line Items]
Agreement term	25 years
Renewal term	10 years
Solar renewable energy certificate revenue
Disaggregation of Revenue [Line Items]
Energy per certificate (in kWhs) \| kWh	1,000
Typical period for receiving payment	1 month
Service revenue
Disaggregation of Revenue [Line Items]
Agreement term	10 years
Loan revenue
Disaggregation of Revenue [Line Items]
Deferred revenue	$ 783,789		$ 586,128
Loan revenue \| Minimum
Disaggregation of Revenue [Line Items]
Agreement term	10 years
Minimum FICO score required for customer to qualify for program \| FICO_score	600
Loan revenue \| Median
Disaggregation of Revenue [Line Items]
Agreement term	15 years
Loan revenue \| Maximum
Disaggregation of Revenue [Line Items]
Agreement term	25 years
Minimum FICO score required for customer to qualify for program \| FICO_score	710

Significant Accounting Policies - Performance Obligations (Details) $ in Billions	6 Months Ended
	Jun. 30, 2023 USD ($)
Accounting Policies [Abstract]
Contracted but not yet recognized revenue	$ 4.1
Performance obligation, description of timing	We do not expect the annual recognition to vary significantly over approximately the next 20 years as the vast majority of existing solar service agreements have at least 20 years remaining
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-07-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Contracted but not yet recognized revenue	3.00%
Contracted but not yet recognized revenue, expected timing of satisfaction	12 months

Significant Accounting Policies - Deferred Revenue (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022	Dec. 31, 2021
Disaggregation of Revenue [Line Items]
Deferred revenue	$ 818,506	$ 615,623	$ 297,800
Deferred revenue included in other current liabilities	41,277	30,172
Loans
Disaggregation of Revenue [Line Items]
Deferred revenue	783,789	586,128
PPAs and leases
Disaggregation of Revenue [Line Items]
Deferred revenue	30,235	24,893
Solar receivables
Disaggregation of Revenue [Line Items]
Deferred revenue	4,471	4,602
Other
Disaggregation of Revenue [Line Items]
Deferred revenue	$ 11	$ 0

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References + Details

Property and Equipment (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 4,988,159	$ 4,192,983
Less: accumulated depreciation	(475,649)	(408,182)
Property and equipment, net	$ 4,512,510	3,784,801
Solar energy systems and energy storage systems
Property, Plant and Equipment [Line Items]
Useful Lives	35 years
Property and equipment, gross	$ 4,295,288	3,719,727
Less: accumulated depreciation	(418,200)	(360,100)
Construction in progress
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 528,008	329,893
Asset retirement obligations
Property, Plant and Equipment [Line Items]
Useful Lives	30 years
Property and equipment, gross	$ 64,636	57,063
Information technology systems
Property, Plant and Equipment [Line Items]
Useful Lives	3 years
Property and equipment, gross	$ 84,871	72,797
Computers and equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 6,371	4,976
Computers and equipment \| Minimum
Property, Plant and Equipment [Line Items]
Useful Lives	3 years
Computers and equipment \| Maximum
Property, Plant and Equipment [Line Items]
Useful Lives	5 years
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 6,015	5,558
Leasehold improvements \| Minimum
Property, Plant and Equipment [Line Items]
Useful Lives	3 years
Leasehold improvements \| Maximum
Property, Plant and Equipment [Line Items]
Useful Lives	6 years
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Useful Lives	7 years
Property and equipment, gross	$ 1,172	1,172
Vehicles
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 1,640	1,640
Vehicles \| Minimum
Property, Plant and Equipment [Line Items]
Useful Lives	4 years
Vehicles \| Maximum
Property, Plant and Equipment [Line Items]
Useful Lives	5 years
Other
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 158	$ 157
Other \| Minimum
Property, Plant and Equipment [Line Items]
Useful Lives	5 years
Other \| Maximum
Property, Plant and Equipment [Line Items]
Useful Lives	6 years

Detail of Certain Balance Sheet Captions - Other Current Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022	Jun. 30, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Inventory	$ 179,209	$ 152,113
Current portion of customer notes receivable	150,966	114,910
Restricted cash	37,825	51,733	$ 53,842
Prepaid assets	29,713	17,492
Deferred receivables	10,388	7,392
Current portion of investments in solar receivables	7,804	7,107
Other	685	553
Other current assets, net of allowance of $4,093 and $3,250 as of June 30, 2023 and December 31, 2022, respectively	$ 416,590	$ 351,300

Detail of Certain Balance Sheet Captions - Other Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022	Jun. 30, 2022	Mar. 31, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Construction in progress - customer notes receivable	$ 247,588	$ 382,611
Restricted cash	180,718	133,584	$ 101,934
Exclusivity and other bonus arrangements with dealers, net	173,799	121,313
Investments in solar receivables	60,558	65,064
Straight-line revenue adjustment, net	57,803	53,086
Other	237,312	206,233
Total	$ 957,778	$ 961,891	$ 797,253	$ 660,981

Detail of Certain Balance Sheet Captions - Other Current Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Interest payable	$ 42,910	$ 35,258
Deferred revenue	41,277	30,172
Current portion of operating and finance lease liability	3,455	3,247
Current portion of performance guarantee obligations	2,335	2,495
Other	4,065	334
Total	$ 94,042	$ 71,506

Asset Retirement Obligations ("ARO") (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Asset Retirement Obligation Disclosure [Abstract]
Asset retirement obligation, useful life	30 years
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
Balance at beginning of period	$ 69,869	$ 54,396
Additional obligations incurred	7,604	5,390
Accretion expense	2,234	1,735
Other	(44)	(58)
Balance at end of period	$ 79,663	$ 61,463

Customer Notes Receivable - Narrative (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan systems not yet placed in service	$ 247,600,000		$ 247,600,000		$ 382,600,000
Interest income	26,292,000	$ 13,311,000	51,080,000	$ 24,243,000
Customer notes receivable not accruing interest	19,800,000		19,800,000		12,600,000
Customer notes receivable not accruing interest, allowance	436,000		436,000		278,000
Interest income for nonaccrual loans	0	0	0	0
Amortized cost	55,400,000		55,400,000		31,400,000
Customer notes receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest income	23,100,000	13,100,000	43,200,000	23,900,000
Accrued investment income receivable	23,200,000		23,200,000		$ 10,200,000
Accrued investment income receivable, written off	$ 4,000	$ 4,000	$ 17,000	$ 497,000
Loan revenue \| Minimum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Agreement term			10 years
Loan revenue \| Median
Accounts, Notes, Loans and Financing Receivable [Line Items]
Agreement term			15 years
Loan revenue \| Maximum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Agreement term			25 years

Customer Notes Receivable - Schedule of Customer Notes Receivables (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Customer notes receivable	$ 3,481,602		$ 2,662,307
Allowance for credit losses	(102,337)	$ (91,459)	(81,248)	$ (57,043)	$ (47,818)	$ (41,138)
Carrying Value
Accounts, Notes, Loans and Financing Receivable [Line Items]
Customer notes receivable	3,379,265		2,581,059
Estimated Fair Value
Accounts, Notes, Loans and Financing Receivable [Line Items]
Customer notes receivable	$ 3,316,523		$ 2,554,948

- Definition

Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

+ References + Details

- Definition

Amortized cost, before allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 80
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479294/326-20-55-80

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 326
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-Section 55
-Paragraph 79
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479294/326-20-55-79

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-Topic 326
-SubTopic 20
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-Section 45
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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-Section S99
-Paragraph 1
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Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Name Regulation S-K (SK)
-Number 229
-Section 1405
-Paragraph (a)
-Subparagraph (1)
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Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Name Regulation S-K (SK)
-Number 229
-Section 1405
-Paragraph (a)
-Subparagraph (2)
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Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef
-Name Regulation S-K (SK)
-Number 229
-Section 1404
-Paragraph (a)
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Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 14
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-Name Accounting Standards Codification
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-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-5

+ Details

Customer Notes Receivable - Schedule of Changes in Allowances for Credit Losses Related to Customer Notes Receivable (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	$ 91,459	$ 47,818	$ 81,248	$ 41,138
Provision for current expected credit loss	10,878	9,225	21,089	15,869
Recoveries	0	0	0	36
Balance at end of period	$ 102,337	$ 57,043	$ 102,337	$ 57,043

- Definition

Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

+ References + Details

Customer Notes Receivable - Schedule of Aged Receivables (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Financing Receivable, Past Due [Line Items]
Customer notes receivable	$ 3,481,602	$ 2,662,307
Total past due
Financing Receivable, Past Due [Line Items]
Customer notes receivable	191,250	123,031
1-90 days past due
Financing Receivable, Past Due [Line Items]
Customer notes receivable	116,075	91,668
91-180 days past due
Financing Receivable, Past Due [Line Items]
Customer notes receivable	26,263	16,859
Greater than 180 days past due
Financing Receivable, Past Due [Line Items]
Customer notes receivable	48,912	14,504
Not past due
Financing Receivable, Past Due [Line Items]
Customer notes receivable	$ 3,290,352	$ 2,539,276

- Definition

Amortized cost, before allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 80
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479294/326-20-55-80

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 326
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-Topic 326
-SubTopic 20
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-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(3)(b))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Name Regulation S-K (SK)
-Number 229
-Section 1405
-Paragraph (a)
-Subparagraph (1)
-Publisher SEC

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Name Regulation S-K (SK)
-Number 229
-Section 1405
-Paragraph (a)
-Subparagraph (2)
-Publisher SEC

Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef
-Name Regulation S-K (SK)
-Number 229
-Section 1404
-Paragraph (a)
-Publisher SEC

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 14
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Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Name Accounting Standards Codification
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Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-5

+ Details

Customer Notes Receivable - Schedule of Amortized cost of Customer Notes Receivable (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Financing Receivable, Credit Quality Indicator [Line Items]
2023	$ 882,708
2022	1,403,691
2021	727,607
2020	222,519
2019	115,195
Prior	129,882
Total	3,481,602	$ 2,662,307
Performing
Financing Receivable, Credit Quality Indicator [Line Items]
2023	882,708
2022	1,384,684
2021	714,073
2020	218,295
2019	110,807
Prior	122,123
Total	3,432,690
Nonperforming
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0
2022	19,007
2021	13,534
2020	4,224
2019	4,388
Prior	7,759
Total	$ 48,912

Long-Term Debt - Schedule of Long-Term Debt (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Long-term debt, non-current	$ 6,123,923	$ 5,194,755
Long-term debt, current	241,968	214,431
SEI \| Convertible senior notes
Debt Instrument [Line Items]
Debt discount, net, non-current	(21,762)	(24,324)
Debt discount, net, current	0	0
Deferred financing costs, net, non-current	(856)	(920)
Deferred financing costs, net, current	$ 0	$ 0
SEI \| Convertible senior notes \| 0.25% convertible senior notes
Debt Instrument [Line Items]
Stated interest rate	0.25%
Weighted average effective interest rate	0.71%	0.71%
Long-term debt, gross, non-current	$ 575,000	$ 575,000
Long-term debt, gross, current	$ 0	$ 0
SEI \| Convertible senior notes \| 2.625% convertible senior notes
Debt Instrument [Line Items]
Stated interest rate	2.625%
Weighted average effective interest rate	3.05%	3.11%
Long-term debt, gross, non-current	$ 600,000	$ 600,000
Long-term debt, gross, current	0	0
Sunnova Energy Corporation
Debt Instrument [Line Items]
Debt discount, net, non-current	(3,141)	(3,767)
Debt discount, net, current	0	0
Deferred financing costs, net, non-current	(6,349)	(7,339)
Deferred financing costs, net, current	$ 0	$ 0
Sunnova Energy Corporation \| Note payable
Debt Instrument [Line Items]
Stated interest rate	7.24%
Weighted average effective interest rate	8.34%
Long-term debt, gross, non-current	$ 0	$ 0
Long-term debt, gross, current	$ 4,924	$ 0
Sunnova Energy Corporation \| Senior notes \| 5.875% senior notes
Debt Instrument [Line Items]
Stated interest rate	5.875%
Weighted average effective interest rate	6.59%	6.52%
Long-term debt, gross, non-current	$ 400,000	$ 400,000
Long-term debt, gross, current	0	0
EZOP \| Revolving credit facility
Debt Instrument [Line Items]
Debt discount, net, non-current	(393)	(532)
Debt discount, net, current	$ 0	$ 0
EZOP \| Line of credit \| Revolving credit facility
Debt Instrument [Line Items]
Weighted average effective interest rate	8.51%	5.10%
Long-term debt, gross, non-current	$ 721,000	$ 500,000
Long-term debt, gross, current	0	0
HELII
Debt Instrument [Line Items]
Debt discount, net, non-current	(27)	(30)
Debt discount, net, current	0	0
Deferred financing costs, net, non-current	(3,255)	(3,591)
Deferred financing costs, net, current	$ 0	$ 0
HELII \| Solar asset-backed notes
Debt Instrument [Line Items]
Weighted average effective interest rate	5.69%	5.69%
Long-term debt, gross, non-current	$ 199,339	$ 204,016
Long-term debt, gross, current	8,985	8,632
RAYSI
Debt Instrument [Line Items]
Debt discount, net, non-current	(842)	(960)
Debt discount, net, current	0	0
Deferred financing costs, net, non-current	(3,225)	(3,451)
Deferred financing costs, net, current	$ 0	$ 0
RAYSI \| Solar asset-backed notes
Debt Instrument [Line Items]
Weighted average effective interest rate	5.62%	5.54%
Long-term debt, gross, non-current	$ 102,396	$ 105,878
Long-term debt, gross, current	11,432	9,957
HELIII
Debt Instrument [Line Items]
Debt discount, net, non-current	(1,393)	(1,536)
Debt discount, net, current	0	0
Deferred financing costs, net, non-current	(1,337)	(1,474)
Deferred financing costs, net, current	$ 0	$ 0
HELIII \| Solar loan-backed notes
Debt Instrument [Line Items]
Weighted average effective interest rate	4.47%	4.42%
Long-term debt, gross, non-current	$ 90,342	$ 94,247
Long-term debt, gross, current	10,208	10,438
TEPH
Debt Instrument [Line Items]
Debt discount, net, non-current	(1,510)	(2,043)
Debt discount, net, current	$ 0	$ 0
TEPH \| Line of credit \| Revolving credit facility
Debt Instrument [Line Items]
Weighted average effective interest rate	10.03%	7.74%
Long-term debt, gross, non-current	$ 473,840	$ 425,700
Long-term debt, gross, current	0	0
SOLI
Debt Instrument [Line Items]
Debt discount, net, non-current	(81)	(87)
Debt discount, net, current	0	0
Deferred financing costs, net, non-current	(6,302)	(6,827)
Deferred financing costs, net, current	$ 0	$ 0
SOLI \| Solar asset-backed notes
Debt Instrument [Line Items]
Weighted average effective interest rate	3.95%	3.92%
Long-term debt, gross, non-current	$ 342,701	$ 348,962
Long-term debt, gross, current	14,807	16,063
HELIV
Debt Instrument [Line Items]
Debt discount, net, non-current	(488)	(564)
Debt discount, net, current	0	0
Deferred financing costs, net, non-current	(2,279)	(2,609)
Deferred financing costs, net, current	$ 0	$ 0
HELIV \| Solar loan-backed notes
Debt Instrument [Line Items]
Weighted average effective interest rate	4.19%	4.15%
Long-term debt, gross, non-current	$ 101,472	$ 105,655
Long-term debt, gross, current	$ 11,169	$ 11,494
AP8 \| Line of credit \| Revolving credit facility
Debt Instrument [Line Items]
Weighted average effective interest rate	9.61%	20.52%
Long-term debt, gross, non-current	$ 177,000	$ 74,535
Long-term debt, gross, current	0	465
SOLII
Debt Instrument [Line Items]
Debt discount, net, non-current	(60)	(64)
Debt discount, net, current	0	0
Deferred financing costs, net, non-current	(4,263)	(4,576)
Deferred financing costs, net, current	$ 0	$ 0
SOLII \| Solar asset-backed notes
Debt Instrument [Line Items]
Weighted average effective interest rate	3.44%	3.41%
Long-term debt, gross, non-current	$ 226,853	$ 232,276
Long-term debt, gross, current	7,003	6,409
HELV
Debt Instrument [Line Items]
Debt discount, net, non-current	(614)	(690)
Debt discount, net, current	0	0
Deferred financing costs, net, non-current	(2,378)	(2,661)
Deferred financing costs, net, current	$ 0	$ 0
HELV \| Solar loan-backed notes
Debt Instrument [Line Items]
Weighted average effective interest rate	2.49%	2.47%
Long-term debt, gross, non-current	$ 139,219	$ 143,940
Long-term debt, gross, current	13,925	14,367
SOLIII
Debt Instrument [Line Items]
Debt discount, net, non-current	(109)	(117)
Debt discount, net, current	0	0
Deferred financing costs, net, non-current	(5,247)	(5,616)
Deferred financing costs, net, current	$ 0	$ 0
SOLIII \| Solar asset-backed notes
Debt Instrument [Line Items]
Weighted average effective interest rate	2.83%	2.78%
Long-term debt, gross, non-current	$ 266,311	$ 275,779
Long-term debt, gross, current	16,776	16,632
HELVI
Debt Instrument [Line Items]
Debt discount, net, non-current	(36)	(40)
Debt discount, net, current	0	0
Deferred financing costs, net, non-current	(2,629)	(2,909)
Deferred financing costs, net, current	$ 0	$ 0
HELVI \| Solar loan-backed notes
Debt Instrument [Line Items]
Weighted average effective interest rate	2.12%	2.08%
Long-term debt, gross, non-current	$ 165,314	$ 167,669
Long-term debt, gross, current	13,947	16,770
HELVII
Debt Instrument [Line Items]
Debt discount, net, non-current	(35)	(38)
Debt discount, net, current	0	0
Deferred financing costs, net, non-current	(2,000)	(2,193)
Deferred financing costs, net, current	$ 0	$ 0
HELVII \| Solar loan-backed notes
Debt Instrument [Line Items]
Weighted average effective interest rate	2.53%	2.50%
Long-term debt, gross, non-current	$ 125,963	$ 126,856
Long-term debt, gross, current	11,786	16,058
HELVIII
Debt Instrument [Line Items]
Debt discount, net, non-current	(4,812)	(5,267)
Debt discount, net, current	0	0
Deferred financing costs, net, non-current	(3,751)	(4,080)
Deferred financing costs, net, current	$ 0	$ 0
HELVIII \| Solar loan-backed notes
Debt Instrument [Line Items]
Weighted average effective interest rate	3.64%	3.54%
Long-term debt, gross, non-current	$ 245,888	$ 250,014
Long-term debt, gross, current	25,490	31,099
SOLIV
Debt Instrument [Line Items]
Debt discount, net, non-current	(10,324)	(11,190)
Debt discount, net, current	0	0
Deferred financing costs, net, non-current	(7,395)	(7,996)
Deferred financing costs, net, current	$ 0	$ 0
SOLIV \| Solar asset-backed notes
Debt Instrument [Line Items]
Weighted average effective interest rate	5.94%	5.76%
Long-term debt, gross, non-current	$ 332,915	$ 338,251
Long-term debt, gross, current	8,240	8,080
HELIX
Debt Instrument [Line Items]
Debt discount, net, non-current	(3,312)	(3,589)
Debt discount, net, current	0	0
Deferred financing costs, net, non-current	(3,062)	(3,303)
Deferred financing costs, net, current	$ 0	$ 0
HELIX \| Solar loan-backed notes
Debt Instrument [Line Items]
Weighted average effective interest rate	5.68%	5.46%
Long-term debt, gross, non-current	$ 191,508	$ 193,837
Long-term debt, gross, current	27,083	29,632
HELX
Debt Instrument [Line Items]
Debt discount, net, non-current	(18,779)	(12,459)
Debt discount, net, current	0	0
Deferred financing costs, net, non-current	(3,489)	(3,319)
Deferred financing costs, net, current	$ 0	$ 0
HELX \| Solar loan-backed notes
Debt Instrument [Line Items]
Weighted average effective interest rate	7.36%	6.23%
Long-term debt, gross, non-current	$ 201,011	$ 162,301
Long-term debt, gross, current	$ 24,889	$ 18,335
IS \| Line of credit \| Revolving credit facility
Debt Instrument [Line Items]
Weighted average effective interest rate	8.40%
Long-term debt, gross, non-current	$ 37,100	$ 0
Long-term debt, gross, current	0	0
SOLV
Debt Instrument [Line Items]
Debt discount, net, non-current	(17,195)	0
Debt discount, net, current	0	0
Deferred financing costs, net, non-current	(7,515)	0
Deferred financing costs, net, current	$ 0	$ 0
SOLV \| Solar asset-backed notes
Debt Instrument [Line Items]
Weighted average effective interest rate	6.70%
Long-term debt, gross, non-current	$ 316,566	$ 0
Long-term debt, gross, current	6,934	0
HELXI
Debt Instrument [Line Items]
Debt discount, net, non-current	(12,894)	0
Debt discount, net, current	0	0
Deferred financing costs, net, non-current	(5,777)	0
Deferred financing costs, net, current	$ 0	$ 0
HELXI \| Solar loan-backed notes
Debt Instrument [Line Items]
Weighted average effective interest rate	6.00%
Long-term debt, gross, non-current	$ 261,101	$ 0
Long-term debt, gross, current	$ 24,370	$ 0

Long-Term Debt - Narrative (Details) - USD ($)	1 Months Ended
Long-Term Debt - Narrative (Details) - USD ($)	Jun. 30, 2023	May 31, 2023	Apr. 30, 2023	Mar. 31, 2023	Feb. 23, 2023	Nov. 30, 2022	Oct. 31, 2022	Sep. 30, 2022	Aug. 31, 2022
Debt Instrument [Line Items]
Borrowing capacity	$ 301,100,000
EZOP \| Line of credit \| Revolving credit facility
Debt Instrument [Line Items]
Borrowing capacity	54,000,000
Aggregate committed amount				$ 775,000,000	$ 675,000,000				$ 450,000,000
Maximum borrowing capacity				900,000,000	$ 800,000,000			$ 575,000,000
TEPH \| Line of credit \| Revolving credit facility
Debt Instrument [Line Items]
Borrowing capacity	226,200,000
Aggregate committed amount				700,000,000			$ 600,000,000
Maximum borrowing capacity				789,700,000			$ 689,700,000
IS \| Line of credit \| Revolving credit facility
Debt Instrument [Line Items]
Borrowing capacity	12,900,000
Maximum borrowing capacity				$ 50,000,000
Maturity period after parent credit facility maturity				6 months
Maturity trigger, parent credit facility, terminated minimum				$ 250,000,000
AP8 \| Line of credit \| Revolving credit facility
Debt Instrument [Line Items]
Borrowing capacity	8,000,000
Maximum borrowing capacity	185,000,000			$ 150,000,000		$ 75,000,000
SOLV \| Secured Debt \| Asset-backed Securities, 2023-1 Class A
Debt Instrument [Line Items]
Principal amount of debt issued			$ 300,000,000
Discount			5.01%
Stated interest rate			5.40%
SOLV \| Secured Debt \| Asset-backed Securities, 2023-1 Class B
Debt Instrument [Line Items]
Principal amount of debt issued			$ 23,500,000
Discount			11.63%
Stated interest rate			7.35%
HELXI \| Asset-backed Securities, 2023-A, Class A
Debt Instrument [Line Items]
Principal amount of debt issued		$ 174,900,000
Discount		2.57%
Stated interest rate		5.30%
HELXI \| Asset-backed Securities, 2023-A, Class B
Debt Instrument [Line Items]
Principal amount of debt issued		$ 80,100,000
Discount		5.31%
Stated interest rate		5.60%
HELXI \| Asset-backed Securities, 2023-A, Class C
Debt Instrument [Line Items]
Principal amount of debt issued		$ 31,700,000
Discount		13.56%
Stated interest rate		6.00%
Sunnova Energy Corporation \| Note payable
Debt Instrument [Line Items]
Principal amount of debt issued	$ 6,800,000
Stated interest rate	7.24%
Debt instrument term	10 months

Long-Term Debt - Schedule of Fair Value of Long-term Debt (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Net deferred financing costs and debt discounts	$ 168,900	$ 130,200
Carrying Value
Debt Instrument [Line Items]
Long-term debt	6,534,807	5,539,347
Estimated Fair Value
Debt Instrument [Line Items]
Long-term debt	$ 6,079,410	5,089,220
SEI \| Convertible senior notes \| 0.25% convertible senior notes
Debt Instrument [Line Items]
Stated interest rate	0.25%
SEI \| Convertible senior notes \| 2.625% convertible senior notes
Debt Instrument [Line Items]
Stated interest rate	2.625%
SEI \| Carrying Value \| Convertible senior notes \| 0.25% convertible senior notes
Debt Instrument [Line Items]
Long-term debt	$ 575,000	575,000
SEI \| Carrying Value \| Convertible senior notes \| 2.625% convertible senior notes
Debt Instrument [Line Items]
Long-term debt	600,000	600,000
SEI \| Estimated Fair Value \| Convertible senior notes \| 0.25% convertible senior notes
Debt Instrument [Line Items]
Long-term debt	509,103	511,733
SEI \| Estimated Fair Value \| Convertible senior notes \| 2.625% convertible senior notes
Debt Instrument [Line Items]
Long-term debt	$ 572,133	574,693
Sunnova Energy Corporation \| Note payable
Debt Instrument [Line Items]
Stated interest rate	7.24%
Sunnova Energy Corporation \| Carrying Value \| Convertible senior notes \| 5.875% senior notes
Debt Instrument [Line Items]
Long-term debt	$ 400,000	400,000
Sunnova Energy Corporation \| Carrying Value \| Note payable
Debt Instrument [Line Items]
Long-term debt	4,924	0
Sunnova Energy Corporation \| Estimated Fair Value \| Convertible senior notes \| 5.875% senior notes
Debt Instrument [Line Items]
Long-term debt	357,176	359,283
Sunnova Energy Corporation \| Estimated Fair Value \| Note payable
Debt Instrument [Line Items]
Long-term debt	4,924	0
HELII \| Carrying Value \| Solar asset-backed notes
Debt Instrument [Line Items]
Long-term debt	208,324	212,648
HELII \| Estimated Fair Value \| Solar asset-backed notes
Debt Instrument [Line Items]
Long-term debt	200,362	206,045
RAYSI \| Carrying Value \| Solar asset-backed notes
Debt Instrument [Line Items]
Long-term debt	113,828	115,835
RAYSI \| Estimated Fair Value \| Solar asset-backed notes
Debt Instrument [Line Items]
Long-term debt	102,976	104,594
HELIII \| Carrying Value \| Solar loan-backed notes
Debt Instrument [Line Items]
Long-term debt	100,550	104,685
HELIII \| Estimated Fair Value \| Solar loan-backed notes
Debt Instrument [Line Items]
Long-term debt	89,725	93,706
SOLI \| Carrying Value \| Solar asset-backed notes
Debt Instrument [Line Items]
Long-term debt	357,508	365,025
SOLI \| Estimated Fair Value \| Solar asset-backed notes
Debt Instrument [Line Items]
Long-term debt	310,552	313,174
HELIV \| Carrying Value \| Solar loan-backed notes
Debt Instrument [Line Items]
Long-term debt	112,641	117,149
HELIV \| Estimated Fair Value \| Solar loan-backed notes
Debt Instrument [Line Items]
Long-term debt	97,524	100,913
SOLII \| Carrying Value \| Solar asset-backed notes
Debt Instrument [Line Items]
Long-term debt	233,856	238,685
SOLII \| Estimated Fair Value \| Solar asset-backed notes
Debt Instrument [Line Items]
Long-term debt	190,429	189,728
HELV \| Carrying Value \| Solar loan-backed notes
Debt Instrument [Line Items]
Long-term debt	153,144	158,307
HELV \| Estimated Fair Value \| Solar loan-backed notes
Debt Instrument [Line Items]
Long-term debt	133,109	135,408
SOLIII \| Carrying Value \| Solar asset-backed notes
Debt Instrument [Line Items]
Long-term debt	283,087	292,411
SOLIII \| Estimated Fair Value \| Solar asset-backed notes
Debt Instrument [Line Items]
Long-term debt	237,785	237,425
HELVI \| Carrying Value \| Solar loan-backed notes
Debt Instrument [Line Items]
Long-term debt	179,261	184,439
HELVI \| Estimated Fair Value \| Solar loan-backed notes
Debt Instrument [Line Items]
Long-term debt	153,633	157,289
HELVII \| Carrying Value \| Solar loan-backed notes
Debt Instrument [Line Items]
Long-term debt	137,749	142,914
HELVII \| Estimated Fair Value \| Solar loan-backed notes
Debt Instrument [Line Items]
Long-term debt	120,098	124,476
HELVIII \| Carrying Value \| Solar loan-backed notes
Debt Instrument [Line Items]
Long-term debt	271,378	281,113
HELVIII \| Estimated Fair Value \| Solar loan-backed notes
Debt Instrument [Line Items]
Long-term debt	243,427	252,483
SOLIV \| Carrying Value \| Solar asset-backed notes
Debt Instrument [Line Items]
Long-term debt	341,155	346,331
SOLIV \| Estimated Fair Value \| Solar asset-backed notes
Debt Instrument [Line Items]
Long-term debt	326,515	334,335
HELIX \| Carrying Value \| Solar loan-backed notes
Debt Instrument [Line Items]
Long-term debt	218,591	223,469
HELIX \| Estimated Fair Value \| Solar loan-backed notes
Debt Instrument [Line Items]
Long-term debt	206,158	210,070
HELX \| Carrying Value \| Solar loan-backed notes
Debt Instrument [Line Items]
Long-term debt	225,900	180,636
HELX \| Estimated Fair Value \| Solar loan-backed notes
Debt Instrument [Line Items]
Long-term debt	222,457	183,165
SOLV \| Carrying Value \| Solar asset-backed notes
Debt Instrument [Line Items]
Long-term debt	323,500	0
SOLV \| Estimated Fair Value \| Solar asset-backed notes
Debt Instrument [Line Items]
Long-term debt	314,433	0
HELXI \| Carrying Value \| Solar loan-backed notes
Debt Instrument [Line Items]
Long-term debt	285,471	0
HELXI \| Estimated Fair Value \| Solar loan-backed notes
Debt Instrument [Line Items]
Long-term debt	277,951	0
Revolving credit facility \| EZOP \| Carrying Value \| Line of credit
Debt Instrument [Line Items]
Long-term debt	721,000	500,000
Revolving credit facility \| EZOP \| Estimated Fair Value \| Line of credit
Debt Instrument [Line Items]
Long-term debt	721,000	500,000
Revolving credit facility \| TEPH \| Carrying Value \| Line of credit
Debt Instrument [Line Items]
Long-term debt	473,840	425,700
Revolving credit facility \| TEPH \| Estimated Fair Value \| Line of credit
Debt Instrument [Line Items]
Long-term debt	473,840	425,700
Revolving credit facility \| AP8 \| Carrying Value \| Line of credit
Debt Instrument [Line Items]
Long-term debt	177,000	75,000
Revolving credit facility \| AP8 \| Estimated Fair Value \| Line of credit
Debt Instrument [Line Items]
Long-term debt	177,000	75,000
Revolving credit facility \| IS \| Carrying Value \| Line of credit
Debt Instrument [Line Items]
Long-term debt	37,100	0
Revolving credit facility \| IS \| Estimated Fair Value \| Line of credit
Debt Instrument [Line Items]
Long-term debt	$ 37,100	$ 0

Derivative Instruments - Narrative (Details) - Interest Rate Swap - USD ($)	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Derivative [Line Items]
Aggregate notional amount of derivative	$ 1,106,494,000		$ 948,226,000
EZOP
Derivative [Line Items]
Aggregate notional amount of derivative	153,000,000	$ 340,600,000
Aggregate notional amount of unwound derivative	0	360,200,000
Realized gain	11,100,000	15,700,000
TEPH
Derivative [Line Items]
Aggregate notional amount of derivative	314,600,000	421,100,000
Aggregate notional amount of unwound derivative	241,100,000	515,400,000
Realized gain	4,500,000	29,800,000
AP8
Derivative [Line Items]
Aggregate notional amount of derivative	110,000,000	0
Aggregate notional amount of unwound derivative	0	0
Realized gain	$ 116,000	$ 0

Derivative Instruments - Outstanding Derivative Instruments (Details) - USD ($)	Jun. 30, 2023	Dec. 31, 2022	Jun. 30, 2022
Interest rate swap
Derivative [Line Items]
Aggregate Notional Amount	$ 1,106,494,000	$ 948,226,000
EZOP \| Interest rate swap
Derivative [Line Items]
Aggregate Notional Amount	$ 153,000,000		$ 340,600,000
EZOP \| Interest Rate Swap One
Derivative [Line Items]
Fixed Interest Rate	0.89%	0.89%
Aggregate Notional Amount	$ 609,294,000	$ 489,477,000
TEPH \| Interest rate swap
Derivative [Line Items]
Aggregate Notional Amount	314,600,000		421,100,000
TEPH \| Interest Rate Swap Two
Derivative [Line Items]
Aggregate Notional Amount	$ 312,200,000	$ 383,749,000
TEPH \| Interest Rate Swap Two \| Minimum
Derivative [Line Items]
Fixed Interest Rate	2.62%	1.52%
TEPH \| Interest Rate Swap Two \| Maximum
Derivative [Line Items]
Fixed Interest Rate	3.472%	2.63%
AP8 \| Interest rate swap
Derivative [Line Items]
Aggregate Notional Amount	$ 110,000,000		$ 0
AP8 \| Interest Rate Swap Three
Derivative [Line Items]
Fixed Interest Rate	4.25%	4.25%
Aggregate Notional Amount	$ 185,000,000	$ 75,000,000

Derivative Instruments - Balance Sheet (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Derivatives, Fair Value [Line Items]
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Other assets	Other assets
Not designated as hedging instrument \| Interest rate swap
Derivatives, Fair Value [Line Items]
Derivative asset, fair value	$ 122,271	$ 112,712

- Definition

Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 210
-Name Accounting Standards Codification
-Section 50
-Paragraph 12
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480524/946-210-50-12

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 210
-Name Accounting Standards Codification
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Reference 3: http://www.xbrl.org/2003/role/exampleRef
-Topic 946
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
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-Name Accounting Standards Codification
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Reference 5: http://www.xbrl.org/2003/role/disclosureRef
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-Subparagraph (a)(2)
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-URI https://asc.fasb.org//1943274/2147480524/946-210-50-6

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
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Reference 8: http://www.xbrl.org/2003/role/disclosureRef
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Reference 9: http://www.xbrl.org/2003/role/disclosureRef
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Reference 10: http://www.xbrl.org/2003/role/disclosureRef
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Reference 11: http://www.xbrl.org/2003/role/disclosureRef
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Reference 12: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 13: http://www.xbrl.org/2003/role/disclosureRef
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Reference 14: http://www.xbrl.org/2003/role/disclosureRef
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Reference 23: http://www.xbrl.org/2003/role/disclosureRef
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Reference 24: http://www.xbrl.org/2003/role/disclosureRef
-Topic 825
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-Name Accounting Standards Codification
-Section 50
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482907/825-10-50-10

+ Details

Derivative Instruments - Interest Expense (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2023	Jun. 30, 2022
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized (gain) loss			$ (33,874)	$ 8,011	$ (1,017)
Interest Rate Swap \| Interest Expense
Derivative Instruments, Gain (Loss) [Line Items]
Realized gain	$ (9,062)	$ (46,097)		(15,769)	(45,506)
Unrealized (gain) loss	(15,605)	32,857		8,011	(1,017)
Total	$ (24,667)	$ (13,240)		$ (7,758)	$ (46,523)

- Definition

The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period.

+ References + Details

Income Taxes - Narrative (Details) - USD ($)	3 Months Ended		6 Months Ended
Income Taxes - Narrative (Details) - USD ($)	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Income Tax Disclosure [Abstract]
Effective income tax rate	(8.00%)	0.00%	(4.00%)	0.00%
Income tax penalties and interest accrued	$ 0		$ 0		$ 0

Redeemable Noncontrolling Interests and Noncontrolling Interests - Narrative (Details) - USD ($) $ in Thousands	1 Months Ended									3 Months Ended
	Jun. 30, 2023	May 31, 2023	Apr. 30, 2023	Mar. 31, 2023	Feb. 23, 2023	Dec. 31, 2022	Nov. 30, 2022	Dec. 31, 2021	Jul. 31, 2021	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Mar. 31, 2022
Noncontrolling Interest [Line Items]
Contributions from redeemable noncontrolling interests and noncontrolling interests										$ 40,201	$ 60,203	$ 13,423	$ 3,757
Class A members \| TEP7B
Noncontrolling Interest [Line Items]
Contributions from redeemable noncontrolling interests and noncontrolling interests					$ 125,000	$ 30,000
Class A members \| TEP7C
Noncontrolling Interest [Line Items]
Contributions from redeemable noncontrolling interests and noncontrolling interests				$ 51,300			$ 41,000
Class A members \| TEP7E
Noncontrolling Interest [Line Items]
Contributions from redeemable noncontrolling interests and noncontrolling interests		$ 51,000
Class A members \| TEPI
Noncontrolling Interest [Line Items]
Interest purchased	100.00%
Purchase of noncontrolling interest	$ 5,900
Noncontrolling interest, period increase	67,000
Class A members \| TEP7D
Noncontrolling Interest [Line Items]
Contributions from redeemable noncontrolling interests and noncontrolling interests	$ 250,000					$ 150,000
Class A members \| Sunnova TEP 6-A, LLC
Noncontrolling Interest [Line Items]
Contributions from redeemable noncontrolling interests and noncontrolling interests			$ 57,700					$ 50,000
Class A members \| Sunnova TEP V-C, LLC
Noncontrolling Interest [Line Items]
Contributions from redeemable noncontrolling interests and noncontrolling interests			$ 150,200						$ 150,000

Stockholders' Equity (Details) - shares	6 Months Ended
Stockholders' Equity (Details) - shares	Jun. 30, 2023	Jun. 30, 2022
SunStreet Energy Group, LLC
Repayments of Debt [Line Items]
Shares issued (in shares)	693,443	694,446

Equity-Based Compensation - Narrative (Details) - USD ($)	1 Months Ended	3 Months Ended		6 Months Ended		12 Months Ended
	Feb. 28, 2023	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options vested (in shares)		0	0	16,816	16,816
Stock options vested, value		$ 0	$ 0	$ 309,000	$ 309,000
Total unrecognized compensation expense		$ 11,200,000		$ 11,200,000
Long-Term Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Additional shares authorized during period (in shares)	1,525,652
Shares authorized (in shares)						5,746,588
Common stock outstanding						5.00%
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average period				2 years 3 months 7 days
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average period				1 year 7 months 17 days
Vested (in shares)		75,588	58,198	816,567	702,664
Restricted stock units, vested		$ 1,500,000	$ 1,900,000	$ 15,000,000	$ 15,100,000
Unrecognized compensation expense		$ 33,000,000		$ 33,000,000
Employee Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued in period (in shares)				20,966		7,106

Equity-Based Compensation - Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2023	Dec. 31, 2022
Number of Stock Options
Outstanding, beginning balance (in shares)	3,259,459
Granted (in shares)	942,348
Exercised (in shares)	(31,360)
Forfeited (in shares)	(138,941)
Outstanding, ending balance (in shares)	4,031,506	3,259,459
Number of stock options, exercisable (in shares)	2,663,597
Number of stock options, vested and expected to vest (in shares)	4,031,506
Number of stock options, non-vested (in shares)	1,367,909
Weighted Average Exercise Price
Outstanding, beginning balance (in USD per share)	$ 18.48
Granted (in USD per share)	15.13
Forfeited (in USD per share)	22.02
Exercised (in USD per share)	13.22
Outstanding, ending balance (in USD per share)	17.61	$ 18.48
Weighted average exercise price, exercisable (in USD per share)	16.43
Weighted average exercise price, vested and expected to vest (in USD per share)	$ 17.61
Weighted Average Remaining Contractual Term (Years)
Outstanding, balance	5 years 4 months 9 days	4 years 9 months
Granted	9 years 8 months 26 days
Weighted average remaining contractual term, exercisable	3 years 3 months 25 days
Weighted average remaining contractual term, vested and expected to vest	5 years 4 months 9 days
Weighted Average Grant Date Fair Value
Granted (in USD per share)	$ 8.85
Forfeited (in USD per share)	11.80
Weighted average grant date fair value, non-vested (in USD per share)	$ 10.90
Aggregate Intrinsic Value
Outstanding, beginning balance	$ 10,341
Exercised	132
Outstanding, ending balance	13,561	$ 10,341
Aggregate intrinsic value, exercisable	10,734
Aggregate intrinsic value, vested and expected to vest	$ 13,561

Equity-Based Compensation - Restricted Stock Activity (Details) - Restricted Stock Units - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Number of Restricted Stock Units
Outstanding, beginning balance (in shares)			1,609,615
Granted (in shares)			1,810,918
Vested (in shares)	(75,588)	(58,198)	(816,567)	(702,664)
Forfeited (in shares)			(209,348)
Outstanding, ending balance (in shares)	2,394,618		2,394,618
Weighted Average Grant Date Fair Value
Outstanding. beginning balance (in USD per share)	$ 17.00		$ 17.00		$ 20.62
Granted (in USD per share)			14.53
Vested (in USD per share)			18.34
Forfeited (in USD per share)			18.28
Outstanding, ending balance (in USD per share)	$ 17.00		$ 17.00

Basic and Diluted Net Loss Per Share - Schedule of Basic and Diluted Net Loss Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2023	Jun. 30, 2022
Earnings Per Share [Abstract]
Net loss attributable to stockholders—basic	$ (86,091)	$ (41,137)		$ (167,174)	$ (76,195)
Net loss attributable to stockholders - diluted	$ (86,091)	$ (41,137)		$ (167,174)	$ (76,195)
Net loss per share attributable to stockholders - basic (in USD per share)	$ (0.74)	$ (0.36)	$ (0.31)	$ (1.45)	$ (0.67)
Net loss per share attributable to stockholders - diluted (in USD per share)	$ (0.74)	$ (0.36)	$ (0.31)	$ (1.45)	$ (0.67)
Weighted average common shares outstanding - basic (in shares)	116,236,741	114,548,970		115,658,570	114,027,097
Weighted average common shares outstanding - diluted (in shares)	116,236,741	114,548,970		115,658,570	114,027,097

- Definition

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 250
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483443/250-10-50-3

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 260
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
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- Definition

The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities, and addition from assumption of issuance of common shares for dilutive potential common shares; of income (loss) available to common shareholders.

+ References + Details

Basic and Diluted Net Loss Per Share - Anti-Dilutive Weighted Average Shares (Details) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Equity-based compensation awards
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)	6,460,556	5,192,317	5,753,120	4,841,388
Convertible senior notes
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)	34,150,407	16,628,073	34,150,407	16,628,073

Commitments and Contingencies - Narrative (Details) $ in Thousands	1 Months Ended	3 Months Ended		6 Months Ended
	Dec. 31, 2021 USD ($) MWh	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($)	Dec. 31, 2022 USD ($)
Loss Contingencies [Line Items]
Current portion of performance guarantee obligations		$ 2,335		$ 2,335		$ 2,495
Other commitment		173,800		173,800		121,300
Payments for dealer commitments		31,100	$ 13,700	55,700	$ 26,900
Megawatt hours to be purchased \| MWh	1,420
Payments for purchase obligations		40,100	43,900	118,500	85,700
Remaining purchase commitment		334,600		334,600
Performance Guarantee Obligations
Loss Contingencies [Line Items]
Performance guarantee obligations	$ 5,293	4,539	$ 3,184	4,539	$ 3,184	4,845
Current portion of performance guarantee obligations		2,300		2,300		2,500
Long-term portion of performance guarantee obligations		$ 2,200		$ 2,200		$ 2,300

Commitments and Contingencies - Performance Guarantee Obligations (Details) - Performance Guarantee Obligations - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Performance Guarantee Obligations [Roll Forward]
Balance at beginning of period	$ 4,845	$ 5,293
Accruals	2,485	1,052
Settlements	(2,791)	(3,161)
Balance at end of period	$ 4,539	$ 3,184

Commitments and Contingencies - Lease Expenses and Other Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Commitments and Contingencies Disclosure [Abstract]
Operating lease expense	$ 692	$ 693	$ 1,384	$ 1,385
Finance lease expense:
Amortization expense	249	186	479	361
Interest on lease liabilities	20	13	38	27
Short-term lease expense	39	33	66	60
Variable lease expense	235	267	468	522
Total	$ 1,235	$ 1,192	$ 2,435	$ 2,355

Commitments and Contingencies - Lease Assets and Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Right-of-use assets:
Operating leases	$ 13,677	$ 14,706
Finance leases	2,897	2,476
Total right-of-use assets	16,574	17,182
Current lease liabilities:
Operating leases	2,510	2,451
Finance leases	945	796
Long-term leases liabilities:
Operating leases	14,729	15,751
Finance leases	1,120	957
Total lease liabilities	$ 19,304	$ 19,955
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Other assets	Other assets
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Other assets	Other assets
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Other current liabilities	Other current liabilities
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Other current liabilities	Other current liabilities
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other long-term liabilities	Other long-term liabilities
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other long-term liabilities	Other long-term liabilities

Commitments and Contingencies - Other Lease Information (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flow from operating leases	$ 1,319	$ 809
Operating cash flows from finance leases	38	27
Financing cash flows from finance leases	439	406
Right-of-use assets obtained in exchange for lease obligations:
Finance leases	901	570
Leasehold improvements reimbursements	$ 225	$ 45
Weighted average remaining lease term (years):
Operating leases	6 years 1 month 17 days		6 years 7 months 6 days
Finance leases	4 years 6 months 14 days		2 years 10 months 9 days
Weighted average discount rate (percent)
Operating leases	3.95%		3.95%
Finance leases	5.27%		4.37%

Commitments and Contingencies - Future Minimum Lease Payments (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Operating Leases
Remaining 2023	$ 1,607
2024	3,118
2025	3,168
2026	3,236
2027	3,304
2028 and thereafter	5,485
Total	19,918
Amount representing interest	(2,283)
Amount representing leasehold incentives	(396)
Present value of future payments	17,239
Current portion of lease liability	(2,510)	$ (2,451)
Long-term portion of lease liability	14,729	15,751
Finance Leases
Remaining 2023	560
2024	881
2025	504
2026	220
2027	56
2028 and thereafter	0
Total	2,221
Amount representing interest	(156)
Amount representing leasehold incentives	0
Present value of future payments	2,065
Current portion of lease liability	(945)	(796)
Long-term portion of lease liability	$ 1,120	$ 957

Commitments and Contingencies - Dealer Commitments (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Other Commitments [Line Items]
Total	$ 173,800	$ 121,300
Long-Term Dealer Commitments
Other Commitments [Line Items]
Remaining 2023	13,235
2024	75,691
2025	60,561
2026	36,904
2027	30,000
2028 and thereafter	0
Total	$ 216,391

Commitments and Contingencies - Information Technology Commitments (Details) $ in Thousands	Jun. 30, 2023 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Remaining 2023	$ 24,111
2024	7,049
2025	1,682
2026	0
2027	0
2028 and thereafter	0
Total	$ 32,842