Berkshire Hathaway’s MidAmerican Energy Holdings agreed to buy two adjacent solar projects in California that are set to be the world’s largest photovoltaic development and begin operation by 2016. Warren Buffett’s utility is paying panelmaker SunPower $2 billion to $2.5 billion for the 579-megawatt Antelope Valley projects. The price includes construction, maintenance, and operation. Buffett has been increasing investment in wind and solar energy. –Source, Bloomberg Businessweek, January 7 – January 13, 2013.