Altus Power added a new, combined 10-megawatt (MW) solar plus 15-MWh battery storage facility in Holliston, Massachusetts, the company said in a July 25 press release.

Altus said electricity generated by the solar and battery facility will be delivered under long-term agreements with a regional supermarket as well as local Community Solar customers under the Massachusetts DOER SMART Program.

“Battery storage is an important tool for local utilities to ensure grid stability as they increase their reliance on renewable electricity,” said Gregg Felton, co-CEO and co-founder of Altus Power. “In addition, we expect storage will increasingly be paired with Altus Power solar arrays for customers interested in clean, on-site backup power and electric vehicle charging.”

Solar energy systems paired with battery storage enhance the availability of clean electricity at any time of day, independent of weather conditions, the company said. The Holliston project was developed in partnership with REA, one of Altus Power’s long-standing channel partners, and adds to the 116 MW of solar arrays owned and operated by Altus Power in Massachusetts as of March 31.