Built to serve communities
for the long term.
We develop long-duration energy storage alongside the towns, utilities, and landowners who need it most. One partner, from first conversation to final decommission.
Why long-duration storage matters now.
The Northeast and Mid-Atlantic grids are adding solar and wind faster than they can absorb it. Without storage, that energy spills off the grid at midday and communities pay the price at 6 PM. State clean energy targets make this more urgent every year. Long-duration battery storage, four to twelve hours of capacity, is what makes these targets achievable.
We founded Tremont to develop storage at the scale that fits real community sites. The storage we build is safe enough to be a neighbor: it can be sited on town-owned land, utility parcels, and commercial property close to where people live and work, not just on remote industrial tracts. Smaller projects also move through permitting faster than utility-scale developments. Our team lives and works across the region and has a direct stake in the grids we serve. We currently develop projects in Massachusetts, Connecticut, Rhode Island, New York, New Jersey, New Hampshire, Vermont, and Maine.
The principles behind every project.
Community First
Good storage projects are built with communities, not imposed on them. We may arrive with a concept, but it only moves forward if it genuinely serves your community.
$0 Upfront Cost
Budget constraints shouldn't determine which communities get reliable clean energy. We fund, permit, build, and operate every project.
One Partner, Every Step
From site selection through decommissioning: one team, one contract, one point of contact. We stay accountable for the full life of the project.
Honest and Transparent
We share site assessments, feasibility data, and project timelines openly, including when a site doesn't qualify.
Community-Scale by Design
Most storage developers are chasing 100-acre industrial sites on the transmission grid. We target 2 to 20 acres near a substation, sized to connect at the distribution level and deliver benefits directly to the neighborhoods around them.
Ready to find out what your land can do?
Enter your parcel address and we will complete a free desktop assessment. No commitment required.