Greenbacker names Spencer Mash as Chief Financial Officer

Clean energy investment firm’s co-founder is promoted to CFO, Secretary, and Treasurer

New York, NY, August 3, 2022 — Greenbacker Renewable Energy Company LLC (“GREC” or “Greenbacker”), a leading renewable energy investment company and independent power producer, is pleased to announce that Spencer Mash has been promoted to the positions of Chief Financial Officer, Secretary, and Treasurer, effective August 1, 2022.

Since co-founding Greenbacker in 2011, Mash has been a key member of the company’s management team. Previously an Executive Vice President of Structured Finance at the firm, he brings to his new roles a deep foundational knowledge of Greenbacker’s financial operations, particularly tax equity and debt financing to support asset acquisitions, as well as the industry partnerships he has built over the company’s more than a decade of sustainable infrastructure investment.

During Mash’s tenure, the company’s gross investment value1 grew to over $2.04 billion and the clean power–generating capacity of its fleet of renewable energy projects expanded to over 2.64 gigawatts, with 404 assets across 34 states, districts, territories, and provinces.2 In his role on Greenbacker’s Executive Committee, he has also helped drive the growth and direction of the Greenbacker organization as a whole.

“I’m delighted that Spencer Mash will be stepping into the position of CFO, Secretary, and Treasurer of our company,” said Charles Wheeler, CEO of GREC. “We are extraordinarily fortunate to have Spencer assume these additional responsibilities, as it would have been very difficult to find anyone more capable or qualified. His contributions to Greenbacker’s growth and the mutual respect he enjoys across our entire organization is impossible to quantify.” The responsibilities transitioned to Mash from Richard Butt who, in July 2021, notified Greenbacker of his plans to retire as CFO in 2022, after eight years of service in that role. 

“The opportunity to see Greenbacker grow from our beginnings in a one-room office to a thriving renewables business driving a clean energy future across the country is indescribably special,” said Mash. “It’s an honor to assume these roles from Richard, and I’m excited to work with people across the Greenbacker organization to continue making a real impact, building on our growth and momentum, and fulfilling our mission of empowering a sustainable world.”

Mash joined the company from Deerfield Capital Management, where he served as Vice President in the Leveraged Finance Group, performing in depth due diligence and financial analyses, negotiating loan documentation, and monitoring private middle-market first lien, second lien, mezzanine, and one-stop senior secured debt investments. He began his career at Bank of America Merrill Lynch, after graduating magna cum laude from the University of Pennsylvania’s Wharton School of Business with a BS in Economics and a concentration in Finance and Marketing.


1 Gross investment value (GIV) reflects the fair value of our investments and cash as reported in GREC’s annual and/or quarterly financial statements as filed with the SEC, as well as project-level debt related to our projects. The quarterly figures are unaudited and subject to change. Data as of March 31, 2022.

2 GREC portfolio metrics set forth herein are unaudited estimates and subject to change.

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