News in brief from around the world in energy storage.

Adding well-optimised energy storage to solar PV projects in the US state of Massachusetts can increase project revenues by up to 50%, Stem Inc has claimed, as the energy storage provider announced the completion of a front-of-meter solar project with 8MWh of storage.

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