Plus Power
Plus Power develops, owns, and operates battery energy storage systems that enable a more efficient and reliable electric grid.
Last updated September 1, 2026
Overview
Plus Power is a company that develops, owns, and operates battery energy storage systems. It has over 11 GW in development across more than 20 U.S. states and operates projects in Arizona, Hawaii, Massachusetts, Maine, and Texas, with a project under construction in New Mexico. The company claims to have the first grid-forming standalone battery resources at scale in the world.
History
Plus Power develops, owns, and operates standalone battery storage projects. With over 8 years of development history, Plus Power has developed a portfolio including 11 gigawatts in development in more than 20 U.S. states. The company is operating 9 projects in Arizona, Hawaii, Massachusetts, Maine, and Texas, with a project under construction in New Mexico. It also developed 2 projects in Texas that are currently operating and owned by others.
Sources
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