San Diego Gas & Electric (SDG&E) has signed a 25-year power-purchase agreement with a Csolar subsidiary for up to 130MW of renewable power.
The solar photovoltaic energy will come from a proposed facility in Imperial County, California, US.
Power generated by the new Imperial Solar Energy Center South will be delivered to customers in SDG&E's service territory across the Sunrise Powerlink, a 120-mile, 500kv electric transmission line.
When operating at peak times, the Imperial Solar Energy Center South will produce enough electricity to meet the needs of about 44,000 California homes.
The project is expected to be completed in 2014.