The Martha Vineyard-Oak Bluffs Service Center – Battery Energy Storage System Phase 2 is a 9,800kW energy storage project located in Oak Bluffs Service Center, Massachusetts, US. The rated storage capacity of the project is 64,000kWh.

The electro-chemical battery energy storage project uses lithium-ion as its storage technology. The project was announced in 2018 and will be commissioned in 2023.

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The Martha Vineyard-Oak Bluffs Service Center – Battery Energy Storage System Phase 2 is owned by Eversource Energy (100%).

The key applications of the project are peak shaving and energy demand management.

Contractors involved

Eversource Energy is the owner of Martha Vineyard-Oak Bluffs Service Center – Battery Energy Storage System Phase 2.

Additional information

The project will utilize a lithium-ion, 14.7 MW battery system that will supply peak load in the event of an emergency, like an outage or the failure of an undersea cable. It will also help to offset high-demand usage during summer months. Construction will be split into two phases, with 4.9 MW/20 MWh of storage completed in the first phase and the remaining 9.8 MW/64 MWh in the second phase. The electric storage and other equipment will be housed in a two-story building on Eversource-owned land behind our area work center in Oak Bluffs.


All publicly-announced energy storage projects included in this analysis are drawn from GlobalData’s Power IC. The information regarding the projects are sourced through secondary information sources such as country specific power players, company news and reports, statistical organisations, regulatory body, government planning reports and their publications and is further validated through primary from various stakeholders such as power utility companies, consultants, energy associations of respective countries, government bodies and professionals from leading players in the power sector.