Five-year extension expected to support approximately 400,000 MWh of reliable, locally produced renewable electricity

OPAL Fuels (NASDAQ:OPAL), a leader in the production and distribution of renewable and compressed natural gas (RNG and CNG), today announced that it has extended its landfill gas rights agreement with the Miramar Landfill in San Diego, California, for an additional five years.

"For 28 years, OPAL Fuels and the City of San Diego have maintained a successful public-private partnership at Miramar, demonstrating how local infrastructure can turn landfill gas into reliable renewable electricity," said Jonathan Maurer, Co-Chief Executive Officer of OPAL Fuels. "The project captures methane that would otherwise be released into the atmosphere and converts it into locally produced power that serves the City of San Diego and supports Marine Corps Air Station Miramar’s energy security and operational mission. We are proud to continue this work at Miramar into the next decade."

Since 1998, OPAL Fuels, through its predecessor Fortistar, has converted landfill gas from Miramar into clean, reliable electricity for the City of San Diego. Over the five-year extension, the facility is projected to generate approximately 400,000 MWh of local renewable electricity, enough to power more than 6,000 U.S. homes annually, while continuing to capture and beneficially use methane that would otherwise be released into the atmosphere.

Since 2012, the project has also supplied renewable electricity to Marine Corps Air Station Miramar, reducing the installation’s reliance on the regional power grid and strengthening its energy security and resilience. The project demonstrates how locally produced renewable power can support the installation’s operational mission while helping relieve demand on the broader grid.

According to the U.S. Environmental Protection Agency (EPA), landfills are the third-largest source of human-related methane emissions in the U.S. At Miramar, capturing methane and converting it into electricity allows an existing piece of San Diego’s public infrastructure to provide a local source of renewable power while creating environmental and economic value.

About OPAL Fuels

OPAL Fuels (NASDAQ:OPAL) is a leader in the capture and conversion of biogas into low carbon intensity RNG and renewable electricity. OPAL Fuels is also a leader in the marketing and distribution of RNG to heavy duty trucking and other hard to decarbonize industrial sectors. For additional information, and to learn more about OPAL Fuels and how it is leading the effort to capture North America’s harmful methane emissions and decarbonize the economy, please visit www.opalfuels.com.

Forward-Looking Statements

Certain statements in this communication may be considered forward-looking statements within the meaning of the "safe harbor" provisions of the United States Private Securities Litigation Reform Act of 1995. Forward-looking statements are statements that are not historical facts and generally relate to future events or OPAL Fuels’ (the "Company’s") future financial or other performance metrics. In some cases, you can identify forward-looking statements by terminology such as "believe," "may," "will," "potentially," "estimate," "continue," "anticipate," "intend," "could," "would," "project," "target," "plan," "expect," or the negatives of these terms or variations of them or similar terminology. Such forward-looking statements are subject to risks and uncertainties, which could cause actual results to differ materially from those expressed or implied by such forward-looking statements. New risks and uncertainties may emerge from time to time, and it is not possible to predict all risks and uncertainties. These forward-looking statements are based upon estimates and assumptions that, while considered reasonable by the Company and its management, as the case may be, are inherently uncertain and subject to material change. Factors that may cause actual results to differ materially from current expectations include various factors beyond management’s control, including, but not limited to, general economic conditions and other risks, uncertainties and factors set forth in the sections entitled "Risk Factors" and "Cautionary Statement Regarding Forward-Looking Statements" in the Company’s annual report on Form 10-K and quarterly reports on Form 10-Q, and other filings it makes with the Securities and Exchange Commission. Nothing in this communication should be regarded as a representation by any person that the forward-looking statements set forth herein will be achieved or that any of the contemplated results of such forward-looking statements will be achieved. You should not place undue reliance on forward-looking statements in this communication, which speak only as of the date they are made and are qualified in their entirety by reference to the cautionary statements herein. Except as required by law, the Company expressly disclaims any obligations or undertaking to release publicly any updates or revisions to any forward-looking statements contained herein to reflect any change in the Company’s expectations with respect thereto or any change in events, conditions, or circumstances on which any statement is based.

Disclaimer

This communication is for informational purposes only and is neither an offer to purchase, nor a solicitation of an offer to sell, subscribe for or buy, any securities, nor shall there be any sale, issuance or transfer or securities in any jurisdiction in contravention of applicable law. No offer of securities shall be made except by means of a prospectus meeting the requirements of Section 10 of the Securities Act of 1933, as amended.

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Investors

Todd Firestone

Vice President, Investor Relations and Corporate Development

(914) 705-4001

investors@opalfuels.com

Media

Harrison Feuer

Senior Director, Communications and Public Policy

(914) 721-3723

hfeuer@opalfuels.com