Janet Mills, Governor of Maine, has signed legislation that makes hers the ninth US state to have adopted a deployment target for energy storage.

More than 500 residential energy storage batteries will be aggregated into a virtual power plant (VPP) by US utility Portland General Electric (PGE), with some participating households offered US$5,000 rebates on battery system purchases as well as money off their monthly electricity bills.

California investor-owned utility San Diego Gas & Electric (SDG&E) has selected Powin Energy as system provider for a 6.5MW / 26MWh battery energy storage project.

Massachusetts is to become the third US state, after California and Oregon, to impose minimum requirements for usage of energy storage systems.

A community-owned utility company in California is preparing to install a large-scale battery system that could enable the addition of around 50MW of solar generation capacity to the local grid.

After a strong showing in the energy storage segment at its European counterpart in June, Intersolar North America is following suit with a number of companies and organisations launching new products at the show.