Bloom Energy (BE 43.37%) investors are having a terrific Friday, as shares of the renewable energy company surged 47.8% through 10:30 a.m. ET.Last night, Bloom Energy announced a deal to supply up to 1 gigawatt's-worth of fuel cells to electric utility American Electric Power (AEP 2.05%). Bloom's bigger newsLast night's announcement comes on the heels of a miserable earnings report from Bloom last week -- a report that was redeemed by Bloom's announcement of a deal to set up an 80-megawatt fuel cell system ...