Western Farmers Electric Cooperative to Purchase Capacity and Power from Calpine's Oneta Energy Center from 2014-2035

Calpine Corporation (NYSE: CPN) has agreed to supply Western Farmers ElectricCooperative with electric generation capacity and power from Calpine'sOneta Energy Center from June 1, 2014, through 2035. Under the contract,WFEC initially will purchase 160 megawatts of Oneta's capacity, and thatamount will increase in increments up to a maximum of 280 megawatts in2019-2035. The purchase of this capacity gives WFEC the right to call on OECfor energy production from that capacity for an additional charge reflectingvariable production costs.