Through MidAmerican, Warren Buffet invested in a SPWR solar plant. Solar has been one of the hottest investments since ... 60% of all investment funds say they are looking at investing in solar. Warren Buffett does not own SPWR stock.
Buffet doesn't hold the stock, he holds no stocks. Berkshire hathaway's owns stock, which it invests the float from its insurance businesses. Berkshire Hathaway does not own SPWR either. Midamerican energy holdings, owned by berkshire hathaway bought a solar power plant though mostly due to the company's need for carbon credits. Get your info straight.