Siemens 501G combustion turbine

Calpine to Purchase Granite Ridge Energy Center in New Hampshire

Calpine acquired the Granite Ridge Energy Center from Granite Ridge Holdings for $500 million, subject to working capital adjustments. The 745-MW, combined-cycle, gas-fired power plant is located in Londonderry, New Hampshire. The power plant, which commenced commercial operation in 2003, features two Siemens 501G combustion turbines, two heat recovery steam generators and one steam turbine. Calpine expects the transaction to close by the first quarter of 2016.