The U.S. Department of Energy’s (DOE) Loan Programs Office (LPO) announced a conditional commitment for an up to $72.8 million partial loan guarantee to finance the development of a solar-plus long-duration energy storage microgrid on the Tribal lands of the Viejas Band of the Kumeyaay Indians near Alpine, California. The Viejas Microgrid project will provide the Viejas Band with reliable utility-scale renewable energy generation and storage infrastructure through the installation of a 15 MW photovoltaic solar generation system and a 38 MWh battery long-duration energy storage system.