Calpine plans to purchase a nominal 809-MW, combined-cycle power plant and related plant inventory from Exelon for $530 million, subject to working capital adjustments. The natural gas-fired plant is located in North Weymouth, Massachusetts, 12 miles southeast of Boston. Built in 2003, Fore River Generating Station features two Mitsubishi 501G combustion turbines, two heat recovery steam generators and one Mitsubishi steam turbine. Calpine expects the transaction to close in the fourth quarter of 2014 and intends to fund the transaction with cash on hand. The transaction is subject to customary closing conditions, antitrust review under the Hart-Scott-Rodino Act and FERC approval.