Constellation is buying power natural gas and geothermal power provider Calpine in a cash-and-stock deal valued at ...

CPP Investments today announced the sale of its entire stake in U.S. power producer Calpine Corporation (Calpine) to Constellation Energy (Constellation), as part of Constellation's acquisition of ...

Constellation Energy Group, Ins. (CEG) and Calpine Corp. (CPN) announced Friday they have entered into a definitive agreement under ...

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