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Constellation completes $16.4 billion acquisition of Calpine to create the largest electricity producer in the U.S.

Jan 09, 2026•5 months ago

Contract Type

contract

New YorkSoftware

Description

Constellation has successfully acquired Calpine Corp. from Energy Capital Partners, merging their generation assets to form the largest electricity producer in the nation. The total value of the cash-and-stock deal, including debt, is $26.6 billion. This merger aims to meet America's surging energy demands and strengthen the nation's energy security.

Company Information

Company

Constellation

Location

New York, New York, United States

About

Constellation is a growing portfolio of MPL insurance and partner companies working Together for the common good®. Formed in response to the ever-changing realities of health care, Constellation is dedicated to reducing risk and supporting physicians and care teams, thereby improving business results. Constellation and member companies MMIC, UMIA, Arkansas Mutual and MMIC Risk Retention Group hold an “A” (Excellent) financial strength rating from AM Best. Visit ConstellationMutual.com About Michigan Professional Insurance Exchange Michigan Professional Insurance Exchange (MPIE) provides exceptional medical professional liability coverage, claims handling and risk reduction, and patient safety services. ERC Risk Solutions is a subsidiary of MPIE providing customized risk management services nationwide. MPIE is based in Grand Rapids, Michigan. MPIE employs over 30 people and has annualized gross written premiums of approximately $23 million.

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