Despite questions about the Dept. of Energy's loan guarantee program raised by the bankruptcy of solar manufacturer Solyndra, DOE closed all but seven of its 35 conditional loan guarantees before the end of the government's fiscal year and the Sept. 30 end of the stimulus-backed program. With just hours to go, DOE closed four outstanding loan guarantees totaling $4.76 billion: $1.2 billion for SunPower to build a 250-MW photovoltaic solar farm; a $1.4-billion loan guarantee for a 752-MW solar project across 750 rooftops in 28 states and the District of Columbia, financed in part by NRG Energy; a $1.5-billion guarantee for First Solar's Desert Center, Calif., 550-MW Desert Sunlight project; and a $646-million loan guarantee for First Solar's Antelope Valley Solar Ranch 1, a 230-MW solar project being built in Los Angeles County.