Exhibit 99.1

Ormat Technologies Reports 2017 Third Quarter Earnings

Management AFFIRMS Full-Year Total Revenue and adjusted EBITDA Guidance

RENO, Nev. November 7, 2017, Ormat Technologies, Inc. (NYSE: ORA) today announced financial results for the third quarter ended September 30, 2017.

Third quarter 2017 highlights and recent developments:

“ This was a strategically important quarter in our electricity segment, as we increased revenue and gross margin mainly due to the performances of our Bouillante power plant in Guadeloupe, and our Puna plant in Hawaii , ” commented Isaac Angel, Chief Executive Officer. “ Our revenues and gross margin from our electricity segment continue to benefit from our ongoing efforts to improve efficienc ies , and we expect further improvements in 2018 and beyond. O ur Platanares power plant in Honduras commence s operation toward the end of the third quarter and contributed to the electricity segment results as well . We are very excited about the long-term potential in Honduras and with Plata na res, our first facility in the region. We expect the Tungsten Mountain project in Nevada to come online by the end of 2017 . Tungsten Mountain will increase our portfolio to 800 MW and will further strengthen our results and contribute to our innovative portfolio PPA with SCPPA .”

“ Product segment revenue for the full year 2017 is expected to remain strong ,” added Mr. Angel . “ A s we have previously indicated , q uarterly fluctuations in our product segment do occur based on the status and timing of our sales orders, delivery of raw materials and the completion of manufacturing of such orders. Such fluctuations may cause lower revenues and profitability on a quarterly basis as it did in the quarter. Our efforts to secure new orders bore fruit and we reached a backlog of $ 18 2 million as of November 7 , 2017 , strengthen ing and support ing our product segment revenue in 2018 . ”

Guidance

Mr. Angel added, “ We remain confident in our full-year outlook, and are narrowing our guidance range , and slightly increasing the expectations for the t otal r evenue and A djusted EBITDA , based on increasing visibility into our fourth quarter results.

We reiterate our guidance and w e expect full-year 2017 total revenues between $ 686.0 million and $ 696.0 million with electricity segment revenues between $ 463.0 million and $ 468.0 million and product segment revenues between $ 223.0 million and $ 228.0 million . We expect 2017 Adjusted EBITDA between $ 343.0 million and $ 348.0 million for the full year. We expect annual Adjusted EBITDA attributable to non-controlling interest to be approximately $23.0 million.”

Third Quarter 2017 Financial Results

For the three months ended September 30, 2017, total revenues were $ 157.2 million, down from $ 184 . 6 million for the three months ended September 30, 2016, a decrease of 1 4.9 %. Electricity segment revenues increased 2.3 % to $11 2.3 million for the three months ended September 30, 2017, up from $109.8 million for the three months ended September 30, 2016. Product segment revenues decreased 40.0% to $44.9 million for the three months ended September 30, 2017, from $74.8 million for the three months ended September 30, 2016.

General and administrative expenses for the three months ended September 30, 2017 were $10.9 million, or 6.9 % of total revenues, compared to $19.1 million, or 10.3% of total revenues, for the three months ended September 30, 2016. The decrease was primarily attributable to $11.0 million expenses in the three months ended September 30, 2016, related to a settlement of a previously outstanding claim . The decrease was partially offset by general and administrative expenses attributable to the demand response and storage activity that we acquired on March 15, 2017 .

The company reported net income attributable to the company ’s shareholders of $ 19.2 million, or $0. 38 per diluted share, compared to net income attributable to the company’s shareholders of $12.1 million, or $0.24 per diluted share, for the same period last year. This increase in net income was primarily attributable to a decrease of $5.4 million in interest expense, net, related to the early repayment of two higher interest loans and a decrease in other non-operating expense of $4.0 million, partially offset by a decrease in operating income of $ 4.3 million. Adjusted net income attributable to the company’s shareholders was $ 21.1 million, or $0. 42 per diluted share, which excludes $ 1.9 million or $0 . 04 per diluted share of attributable to the make whole premium associated with the full prepayment of the OFC Senior Secured Notes and DEG loan .

Adjusted EBITDA for the three months ended September 30, 2017 was $76.4 million, compared to $85.4 million for the three months ended September 30, 2016, a decrease of 10. 5 %. The reconciliation of GAAP net cash provided by (used in) operating activities and net income to EBITDA and Adjusted EBITDA and additional cash flow information is set forth below in this release.

Backlog

Ormat ’s P roduct segment backlog, as of November 8 , 2017, was $ 18 2 .0 million , which included revenues for the period between October 1 , and November 8 , 2017 .

Dividend

On November 7, 2017, the Company ’s Board of Directors approved and authorized payment of a quarterly dividend of $ 0.08 per share pursuant to the company’s dividend policy. The dividend will be paid on December 5 , 2017 to shareholders of record as of the close of business on November 21 , 2017.

Conference Call Details

Ormat will host a conference call to discuss its financia l results and other matters discussed in this press release at 10 a.m. ET on Wednesday, November 8 , 2017. The call will be available as a live, listen-only webcast at investor.ormat.com . During the webcast, management will refer to slides that will be posted on the website. The slides and accompanying webcast can be accessed through the New & Events in the Investor Relations section of Ormat’s website.

An archive of the webcast will be a vailable approximately 30 minutes after the conclusion of the live call.

Please ask to be joined into the Ormat Technologies, Inc. call.

About Ormat Technologies

With over five decades of experience, Ormat Technologies, Inc. is a leading geothermal company and the only vertically integrated company engaged in geothermal and recovered energy generation (REG), with the objective of becoming a leading global provider of renewable energy. The company owns, operates, designs, manufactures and sells geothermal and REG power plants primarily based on the Ormat Energy Converter – a power generation unit that converts low-, medium- and high-temperature heat into electricity. With 73 U.S. patents, Ormat’s power solutions have been refined and perfected under the most grueling environmental conditions. Ormat has 530 employees in the United States and 720 overseas. Ormat’s flexible, modular solutions for geothermal power and REG are ideal for the vast range of resource characteristics. The company has engineered, manufactured and constructed power plants, which it currently owns or has installed to utilities and developers worldwide, totaling over 2,200 MW of gross capacity. Ormat’s current 776 MW generating portfolio is spread globally in the U.S., Guatemala, Guadeloupe, Honduras, Indonesia and Kenya. Ormat also intends to expand its operations and provide energy management and energy storage solutions, by leveraging its core capabilities and global presence as well as through its Viridity Energy Solutions, Inc. subsidiary, a Philadelphia-based company with nearly a decade of expertise and leadership in demand response, energy management and storage.

Ormat ’s Safe Harbor Statement

Information provided in this press release may contain statements relating to current expectations, estimates, forecasts and proje ctions about future events that are "forward-looking statements" as defined in the Private Securities Litigation Reform Act of 1995. These forward-looking statements generally relate to Ormat's plans, objectives and expectations for future operations and are based upon its management's current estimates and projections of future results or trends. Actual future results may differ materially from those projected as a result of certain risks and uncertainties. For a discussion of such risks and uncertainties, see "Risk Factors" as described in Ormat Technologies, Inc.'s Annual Report on Form 10-K filed with the Securities and Exchange Commission on March 1, 2017.

These forward-looking statements are made only as of the date hereof, and we undertake no obligati on to update or revise the forward-looking statements, whether as a result of new information, future events or otherwise.

Ormat Technologies, Inc. and Subsidiaries

Ormat Technologies, Inc. and Subsidiaries

Condensed Consolidated Statements of Operations

For the Three and Nine-Month Periods Ended September 30, 2017 and 2016

(Unaudited)

Ormat Technologies, Inc. and Subsidiaries

Ormat Technologies, Inc. and Subsidiaries

Condensed Consolidated Balance Sheet

As of September 30, 2017 and December 31, 2016

(Unaudited)

Ormat Technologies, Inc. and Subsidiaries

Reconciliation of EBITDA, Adjusted EBITDA and Additional Cash Flows Information

For the Three and Nine-Month Periods Ended September 30, 2017 and 2016

(Unaudited)

We calculate EBITDA as net income before interest, taxes, depreciation and amortization. We calculate Adjusted EBITDA as net income before interest, taxes, depreciation and amortization, adjusted for (i) termination fees, (ii) impairment of long-lived ass ets, (iii) write-off of unsuccessful exploration activities, (iv) any mark-to-market gains or losses from accounting for derivatives, (v) merger and acquisition transaction cost, (vi) stock-based compensation, (vii) gain from extinguishment of liability, and (viii) gain on sale of subsidiary and property, plant and equipment. EBITDA and Adjusted EBITDA are not a measurement of financial performance or liquidity under accounting principles generally accepted in the United States of America and should not be considered as an alternative to cash flow from operating activities or as a measure of liquidity or an alternative to net earnings as indicators of our operating performance or any other measures of performance derived in accordance with accounting principles generally accepted in the United States of America. EBITDA and Adjusted EBITDA are presented because we believe they are frequently used by securities analysts, investors and other interested parties in the evaluation of a company’s ability to service and/or incur debt. However, other companies in our industry may calculate EBITDA and Adjusted EBITDA differently than we do.

The following tables reconcile net cash provided by (used in) operating activities and net income to EBITDA and Adjusted EBITDA for the three-month and nine months periods ended September 30, 2017 and 2016.

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		Three Months Ended September 30								Nine Months Ended September 30
		2017				2016				2017				2016
		(in thousands)								(in thousands)
Net income		$	22,780			$	14,406			$	100,757			$	70,284
Adjusted for:
Interest expense, net (including amortization of deferred financing costs)			11,437				16,871				40,294				50,730
Income tax provision			11,003				11,988				28,258				29,387
Depreciation and amortization			25,751				25,147				77,041				73,273
EBITDA		$	70,971			$	68,412			$	246,350			$	223,674
Mark-to-market gains or losses from accounting for derivatives			1,663				(1,697	)			(800	)			797
Stock-based compensation			1,861				1,724				7,204				3,383
Gains or losses on sale of subsidiary and property, plant and equipment			—				(686	)			—				(686	)
Gains or losses from extinguishment of debt			1,950				5,780				1,950				5,780
Settlement expenses			—				11,000				—				11,000
Merger and acquisition transaction cost			—				(412	)			1,700				235
Write-off of unsuccessful exploration activities			—				1,294				—				2,714
Adjusted EBITDA		$	76,445			$	85,415			$	256,404			$	246,897

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