InforCapital
CompanyJapanUpdated Feb 22, 2026
Energy Capital Partners

Energy Capital Partners

Energy Capital Partners: Investor • focus on Infrastructure • active in North America, Asia • offices in Japan, South Korea • AUM $20.0B.

Company Profile

Energy Capital Partners (ECP), founded in April 2005 by Doug Kimmelman, Thomas Lane and Scott Helm, is a private equity and credit investment firm headquartered in Summit, New Jersey. Over nearly two decades, the firm has raised more than $31 billion from over 600 limited partners and merged with Bridgepoint Group in August 2024 to expand its platform globally.

ECP focuses on investments in power generation, renewable energy, energy storage, midstream gas infrastructure and environmental sustainability. Its portfolio includes high‑profile assets such as Calpine, Atlantica Sustainable Infrastructure, Biffa UK waste‑management, and the Terra‑Gen renewables platform. In 2025, it launched a $25 billion joint venture with Abu Dhabi’s ADQ to deliver behind‑the‑meter power infrastructure for data centers, complementing a separate $50 billion global collaboration with KKR.

As of early 2024, ECP manages approximately $19–20 billion in assets, with 80–90 employees worldwide. The firm targets infrastructure opportunities across North America and is expanding into Europe, Asia and Japan through strategic partnerships and selective acquisitions.

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