Investors in the much-talked-about clean-energy company Bloom Energy are doubling the size of the company’s current financing round. The company’s series-G financing round closed last year at US$150m, but the investors have decided to expand it by exactly that much more, Dow Jones VentureWire reports, citing an email from the deal’s marketer to potential investors. If successful, the expansion will bring Bloom’s total value to $3bn.