Energy Storage Facility | Brighton, Massachusetts
Streetcar Storage is a proposed battery energy storage facility in Brighton, Massachusetts. The project is designed to help support grid reliability by storing electricity and delivering it when demand is high.
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Streetcar Storage is a proposed battery energy storage system being developed by Flatiron Energy at 1660 & 1800 Soldiers Field Road in Brighton, Massachusetts. Upon completion, the Streetcar storage facility will be capable of storing up to 300-megawatts (MW) of energy and will provide reliable electricity to local homes and businesses during periods of high demand. The project is planned to interconnect at the Eversource Electric Avenue 115 kV Substation Construction is anticipated to begin in the third quarter of 2028, with commercial operations targeted for the fourth quarter of 2029.
This is the system’s maximum power output at any given time.
1 megawatt (MW) = 1,000,000 watts.
Real-world example:
300 MW of power would light up 3 million 100-watt light bulbs.
This is the maximum amount of energy the system can store.
1 MW of power sustained for an hour = 1 MWh.
Real-world example:
1200 MWh is enough energy to power around 60,000 Massachusetts households for one month.
Streetcar Storage will deliver significant environmental, economic, and infrastructure benefits to Brighton and the City of Boston throughout the project’s development, construction, and operation. During construction, the project is expected to generate approximately $16.4 million in new local earnings and create around 100 local jobs. In addition, the project will establish a Host Community Agreement with the City of Boston to ensure sustained, long-term community benefits.
Battery storage is key to enhancing New England’s grid dependability. Streetcar Storage will store and distribute power generated by solar, wind, and other energy sources, making it more accessible when it’s needed most.
Energy storage benefits residents by improving the reliability of the power grid. Batteries provide safe, reliable energy to residents, reducing the risk of blackouts and the need for more expensive energy generation.
The City of Boston sits at a critical intersection of regional energy demand and growing climate pressures. The Streetcar site is located adjacent to a key portion of ISO-New England’s transmission system, enabling efficient interconnection. As Massachusetts experiences more frequent extreme weather events and increased strain on its electrical system, grid reliability and resilience have become essential to protecting residents, businesses, and municipal services. Strategic energy infrastructure investments in Boston help ensure a stable, dependable power supply while supporting the state’s transition to a cleaner energy future.
This project will strengthen Massachusetts’ electric grid by providing flexible capacity to support renewable energy integration and reduce reliance on older, more expensive fossil fuel–based generation during peak demand. In addition to contributing to long term emissions reductions, the project will deliver local benefits, including increased tax revenue, temporary construction jobs, and infrastructure investment. By prioritizing safety, environmental stewardship, and community compatibility, the project reflects a forward-looking approach to meeting energy needs while supporting that state’s long term economic and environmental goals.
This project will strengthen Maryland’s electric grid by providing flexible capacity to support renewable energy integration and reduce reliance on older, more expensive fossil-fuel–based generation during peak demand. In addition to contributing to long-term emissions reductions, the project will deliver local benefits, including increased tax revenue, temporary construction jobs, and infrastructure investment.
By prioritizing safety, environmental stewardship, and community compatibility, the project reflects a forward-looking approach to meeting energy needs while supporting Prince George's County and Maryland's long-term economic and environmental goals.
Battery energy storage systems (BESS) provide reliable energy by storing surplus electricity for use during peak demand periods. The result is cleaner air, reduced pollution, and more affordable energy. Battery storage is a critical component of Connecticut’s clean energy strategy. It supports the state’s goal of deploying 1,000 MW of energy storage by 2030 to meet emissions-reduction and grid-reliability targets.
Renewable energy sources such as solar and wind generate electricity intermittently, and energy demand often does not align with peak renewable production. Battery storage helps balance this mismatch by absorbing excess generation.
Batteries capture and store energy from renewable and other sources for later use. Without storage, excess clean energy that is not immediately consumed would otherwise be lost.
During periods of peak demand, batteries discharge stored energy back into the grid, helping prevent blackouts, reduce grid instability, and lower peak-demand electricity pricing. Battery systems also provide essential grid services throughout the day, improving overall system reliability and resilience.
Permitting and development
Annual performance reviews
Construction commences
Commercial operations
Stay informed – Your input is valued
Streetcar Storage requires state Energy Facilities Siting Board (EFSB) approval to construct and operate the facility. The process involves numerous public meetings and comment periods where interested parties can provide input on various aspects of the Project.
As a certified B Corporation, we deeply value the input of our community.
