Construction has officially begun on the world's largest solar project. The 579-megawatt project is a joint venture between Warren Buffett's Berkshire Hathaway (NYSE:BRK-A) subsidiary MidAmerican Energy and SunPower (NASDAQ:SPWR). In this video, contributor Aimee Duffy breaks down the stats on the new facility, and compares it to the world's current leading solar plant in the United Arab Emirates.