MidAmerican Energy Holdings, the electric utility owned by Warren Buffet's Berkshire Hathway group, announced today it had acquired a 579-megawatt solar development in Southern California.

The Antelope Valley Solar projects, which are actually two adjacent arrays in Kern and Los Angeles counties, will comprise the largest solar project in the world, according to the company's release, serving close to 1 million residents.

Construction of the solar project is scheduled to begin in first quarter 2013, with the plants expected to be complete by year-end 2015.

The previous record was held by NextEra's Mojave development with an operating capacity of 354 megawatts.

Bloomberg reported MidAmerican purchased the development from Sunpower for between $2 and $2.5 billion.