After Bloom's Monday share pop, KR Sridhar (shown here in 2020) founded the company in 2001. Tim Pannell for ForbesWould you pay 18 times revenues for shares of a 24-year-old fuel cell maker that has never turned a profit?Bloom Energy makes solid oxide fuel cells — space age looking boxes that generate electricity from natural gas and emit carbon dioxide. KR Sridhar founded the company in 2001. As the legend goes, Bloom’s tech began with Sridhar’s work devising oxygen-producing machines for NASA; he later f ...