Ormat Technologies has announced that its subsidiary has signed a 20-year power purchase agreement with Southern California Edison for the sale of energy to be produced by a new plant that will be built in Imperial Valley, California.

The plant is expected to come online by mid-2012 and is expected to have a total output of 30MW. The agreement includes an option to increase capacity to 100MW.

The agreement stems from a 2007 request for proposal from Southern California Edison (SCE) and it is subject to approval by the Public Utilities Commission of California.

Dita Bronicki, CEO of Ormat Technologies, said: The agreement for the new Imperial Valley power plant is the eighth such agreement between Ormat and SCE, and the second executed since the enactment of California’s aggressive renewable portfolio standard legislation.