The utility’s MidAmerican Renewables division has signed a deal to buy the 168MW Alta Wind VII and 132MW Alta Wind IX projects from Terra-Gen Power.
The two projects form part of the giant Alta Wind complex in Tehachapi, California.
Equipped with 100 Vestas V90 3MW turbines, they will raise the total capacity at Alta Wind to 1.32GW when completed.
Southern California Edison is buying electricity from Alta Wind under the terms of power purchase agreements running to 2035.
MidAmerican Renewables was set up in January to oversee the expanding clean-energy interests of Buffett’s Berkshire Hathaway Company.
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