Eversource Energy Storage System (ESS)

Construct a 14.7-megawatt energy storage system (ESS) in two phases at the existing Eversource service center. Phase one would consist of a new 7,600 square foot building; phase two would be another 6,840 square foot building. Both structures would house lithium-ion battery storage modules, a power conversion system, a control and protection system indoors, and step-up transformers, switchgear and HVAC units outside the structure shielded on three sides by a 10 foot noise attenuating wall.