Row after row of glossy black boxes hum away on an acre of land between a cornfield and the banks of Delaware's Red Lion Creek. "It's basically a fuel-cell farm," says George Gottuso, senior project manager with Hill International. "Right now, it's delivering 5.8 megawatts to the utility."
These refrigerator-sized cabinets are Bloom Energy Servers, natural-gas-powered fuel cells manufactured and owned by Bloom Energy, Sunnyvale, Calif. Each energy server contains a stack of solid-oxide fuel cells, made with Bloom's patented process and design.