The Dept. of Energy on August 5 finalized a $967-million loan guarantee to Agua Caliente Solar LLC for a 290-MW solar facility being built in Yuma, Ariz., by NRG Solar, Princeton, N.J.

The Agua Caliente solar project will deploy fault ride-through and dynamic voltage regulation, technologies that are new to photovoltaic solar powerplants and which are expected to improve the reliability and predictability of the electricity supplied to the electricity grid.