Massachusetts has issued an emergency regulation to its Solar Massachusetts Renewable Target (SMART) programme, that includes mandating the addition of energy storage on projects over 500kW.

The projects developed through the state’s solar-plus-storage incentive programme are set to produce 11.2MWdc of energy, backed by 10.2MWh of storage.

NEC and developer Kearsage Energy have completed work on a 4.5MW solar PV array, combined with a 1.6MW / 2.8MWh AC-coupled battery energy storage system in Amesbury, Massachusetts.

Commercial energy storage ‘pioneer’ Stem Inc and NEC have announced a master supply agreement and wide-ranging partnership that will see the latter’s equipment and solutions used in solar-plus-storage projects in Stem’s pipeline.

A 6MW / 48MWh battery energy storage system paired to a 15MW diesel generator has gone online on Nantucket, in what has been described by project owner National Grid as the biggest system in New England to date.

The recent flurry of energy storage project announcements from Massachusetts have been driven in part by a “common sense” approach to tackling the dirtiest impacts of fossil fuel generation, Energy-Storage.news has heard from industry figures.

New four-project portfolio heralds the emergence of New England’s solar-plus-storage industry after years of “behind-the-scenes” activity, firm says.

US solar and storage developer Nexamp is to deploy its maiden energy storage projects, clinching a six-strong portfolio of assets totaling 51MWh.

ENGIE Storage will supply and operate a 19 MW / 38 MWh portfolio of six energy storage sites that will contribute to the Solar Massachusetts Renewable Target Program and be active in ISO-New England wholesale markets.

Two of the best known system integrators in the energy storage field have just completed work on large-scale battery systems on the eastern coast of the US, NEC in Massachusetts and Aggreko in New York.