Mr. Gilbert is a Partner at ECP. He is involved in all areas of the firm’s investment activities, with particular emphasis on fossil and renewable power generation and environmental services. He co-chairs ECP’s Risk and Portfolio Company Value Creation Committees. He is also a member of ECP’s Partnership, Management and Investment Committees. Mr. Gilbert serves on the boards of ProEnergy, Atlantica, Convergent, New Leaf, Biffa, Cornerstone Generation, and Anza Renewable Energy. He played a critical role in our transaction with Dynegy Inc. and was instrumental in our management of EquiPower

Resources Corp., Brayton Point Power, LLC, Broad River Power Holdings, LLC and Odessa Power Holdings, LLC. Prior to realization, he also served on the boards of Calpine, Heartland Generation, Symmetry Energy Solutions, Wheelabrator Technologies, Inc, and Triton Power Partners LP.

Prior to joining ECP in 2010, Mr. Gilbert was part of Citigroup’s Global Energy Investment Banking Group, where he focused on the midstream sector.

Mr. Gilbert received a B.S. in Finance and Economics from New York University Stern School of Business and is a CFA Charterholder.

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Boards

Current

Atlantica
Anza Renewable Energy
Biffa
Convergent
Cornerstone Generation
New Leaf Energy
ProEnergy
 

Previous
Calpine 
Heartland Generation
Symmetry Energy Solutions
Triton Power Partners
Wheelabrator Technologies

After becoming ECP’s youngest-ever partner at age 33, Andrew Gilbert continues to distinguish himself as a transformative investor. Over his 15-year tenure, Andrew’s strategic vision and operational expertise have been instrumental in ECP’s most significant transactions, including the landmark $26.6 billion sale of Calpine to Constellation Energy (Nasdaq: CEG) in January 2025.

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Andrew played a central role throughout ECP’s seven-year stewardship of Calpine, from its $17 billion take-private transaction in 2018 (PEI’s 2019 Deal of the Year) to spearheading the creation of a $1.6 billion continuation fund for Calpine in 2022.

Other Dealmaking

• In 2024/2025, Andrew led three deals (>$11 billion in EV and 10 GW of renewable/natural gas generation capacity).

• Atlantica Sustainable Infrastructure (previously NASDAQ: AY) - Sourced and led December 2024 all-cash take-private for $22.00/share (total EV of ~$7.5 billion).

• Lightstone Generation portfolio - Led execution of the acquisition of the 5GW portfolio from Arclight and Blackstone (closed in August 2025).

• ProEnergy - Led September 2024 acquisition of majority interest from affiliates of Eos Partners and ACON Investments. A portion of this platform has already been realized at attractive values, with the announced sale of its Wattbridge generation assets to CPS Energy.

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Realizations

• Heartland Generation - Built a new management team and converted Heartland’s coal facilities to natural gas. Since sold to TransAlta Corporation in late December 2024 in a $658 million (EV) transaction.

• See Calpine noted above.