Energy Capital Partners

Energy Capital Partners (ECP) is a private equity firm founded in 2005, with a proven track record in power, renewables, storage, sustainability, and decarbonization infrastructure. The firm has raised over $40 billion in capital commitments and works with more than 600 limited partners globally. ECP is a leading equity investor across energy transition infrastructure, focusing on electricity and sustainability infrastructure that provides reliable, affordable, and clean energy. Its equity strategy emphasizes control investments, operational enhancements, and negotiated, proprietary deal sourcing. Notable investments include the $17 billion take-private of Calpine Corporation in 2018, one of the largest U.S. natural gas and geothermal power generators; Terra-Gen, a utility-scale renewable energy platform with roughly 8 GW of wind, solar, and storage assets; and Atlantica Sustainable Infrastructure. In 2025, ECP launched a $25 billion joint venture with Abu Dhabi's ADQ focused on behind-the-meter power infrastructure for data centers. ECP's investment approach centers on deep sector knowledge, partnering with management teams to drive value creation across the energy transition, often serving as a bridge between public and private markets throughout periods of high growth and disruptive change in the energy sector.