Stem, Inc. announced the company has been awarded a project mandate to provide energy storage solutions to the Massachusetts Water Resources Authority in Greater Boston, a public agency that provides wholesale water and sewer services reaching more than 3 million people in eastern and central Massachusetts. The project adds to Stem’s significant portfolio of more than 85 megawatt hours (MWh) of water treatment facilities contracted or managed by Athena, Stem’s AI-powered smart storage software. The project mandate totals 1 MWh of standalone, behind the meter energy storage projects located at two MWRA sites in Arlington and Chelsea. Stem expects to deliver significant utility bill savings for MWRA through its demand charge and demand response solutions.