San Diego Gas & Electric (SDG&E) has signed a long-term power purchase agreement (PPA) with Iberdrola Renewables to purchase 100MW of the electricity produced by the Manzana wind farm in California, US.
The wind farm, which is currently under construction, will provide up to 189MW of energy.
Iberdrola Renewables executive vice president, Martin Mugica, said: "Iberdrola Renewables is delighted to continue our relationship with SDG&E."
Mugica continued: "This 100MW power purchase agreement from our Manzana project in Kern County will strongly support SDG&E's efforts in meeting California renewable portfolio standard requirements."
The power project will employ 90 GE turbine nacelles, which were manufactured at GE's factories in Tehachapi and Florida while the turbine towers were delivered through the Port of San Diego.
The company said that three-quarters of the turbines have already been erected.
Construction of the operations and maintenance building and as well as substation, collector system and transmission construction is currently underway.
Construction is being managed by US-based Blattner Energy, with the majority of subcontracted work performed by California companies.
Iberdrola Renewables is the US division of parent company Iberdrola, an energy pioneer with the largest renewable asset base of any company in the world.