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energy utility
Calpine Corporation
Calpine Corporation is the largest U.S. generator of electricity from natural gas and geothermal sources. Headquartered in Houston, Texas, Calpine was acquired by Constellation Energy in January 2026 in a $26.6 billion transaction.
Houston, TX www.calpine.com
Owns / has invested in
Capital and control flowing out
Constellation Energy completed its $26.6 billion acquisition of Calpine from Energy Capital Partners in January 2026, creating the nation's largest power producer with 55 GW of capacity.
- Constellation Energy· subsidiary of
Calpine became a subsidiary of Constellation Energy following the January 2026 acquisition close.
Data centers
2 projects in the dataset
- CyrusOne DFW10 Whitney Campus· supplies energyWhitney, Bosque, TXUnder Construction400 MW
- CyrusOne DFW10 Whitney· supplies energyWhitney, Bosque, TXUnder Construction190 MW
Data is editorial seed at this stage; relationships reflect public reporting and filings. Suggestions and corrections via GitHub.