Massachusetts’s electric distribution companies (EDCs) and the state’s Department of Energy Resources (DOER) have launched a request for proposals (RFP) for approximately 1,500MW of mid-duration energy storage systems.

New Hampshire-based developer Granite Source Power (GSP) co-founder Jessica Shor disclosed to Energy-Storage.news that approximately 80% of the company’s 1,250MW sale would be in ERCOT.