energy utility

Calpine

Largest U.S. generator of electricity from natural gas and geothermal energy; operates in competitive power markets. Acquired by Constellation Energy in January 2026 for $16.4 billion and now operates as a business unit of Constellation.

Houston, Texas, USA www.calpine.comFederal lobbying:$2.0M / yr

Owned / funded by

Capital and control flowing in

Energy Capital Partners· acquired$26.6B
Acquired Calpine in 2018; sold to Constellation Energy in $26.6B deal (closed Jan 2026, $16.4B equity + $12.7B debt).

Data centers

1 project in the dataset

CyrusOne Fairfield (Freestone)· supplies energy
Fairfield, Freestone, TXAnnounced760 MW

Data is editorial seed at this stage; relationships reflect public reporting and filings. Suggestions and corrections via GitHub.