Dunstable Solar 1, LLC
Dunstable Solar 1, LLC is a 9 MW battery storage project in Middlesex County, Massachusetts, operated by AES Distributed Energy. EIA-860M lists 2 generating units here, inside ISO New England. Its units entered service in 2021.
As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m
- Nameplate capacity
- 9 MW
- 9 MW net summer
- Generating units
- 2
- In service
- 2021
- EIA plant ID
- 64696
Where it is
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- County
- Middlesex County, Massachusetts
- Coordinates
- 42.6656, -71.5168
- Balancing authority
- ISNE
- Sector
- IPP Non-CHP
Units, technology and status
- Operator of record
- AES Distributed Energy
- Primary energy source
- Battery
- Technologies
- Batteries, Solar Photovoltaic
- Status
- Operating
This site runs on more than one energy source. EIA-860M capacity splits: Battery 5 MW, Solar 5 MW. It is filed here under Battery, the source with the most capacity.
Dunstable Solar 1, LLC: FAQ
- Where is Dunstable Solar 1, LLC?
- In Middlesex County, Massachusetts (MA). The map on this page is placed at the coordinates EIA files for the plant, which locate the site rather than any individual unit.
- How big is Dunstable Solar 1, LLC?
- 9 MW of nameplate capacity across 2 units, as of the EIA-860M release for 2026-07.
- Who owns Dunstable Solar 1, LLC?
- EIA-860M names AES Distributed Energy as the reporting entity. That is the operator of record on the survey, which is not always the ultimate owner.
- Is Dunstable Solar 1, LLC still running?
- EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.