Westport Stone & Sand Solar (CSG)
Westport Stone & Sand Solar (CSG) is a 5 MW solar farm in Bristol County, Massachusetts, operated by AES Clean Energy. EIA-860M lists 1 generating unit here, inside ISO New England. Its unit entered service in 2024.
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
- 5 MW
- 5 MW net summer
- Generating units
- 1
- In service
- 2024
- EIA plant ID
- 66447
Where it is
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- County
- Bristol County, Massachusetts
- Coordinates
- 41.6211, -71.0552
- Balancing authority
- ISNE
- Sector
- IPP Non-CHP
Units, technology and status
- Operator of record
- AES Clean Energy
- Primary energy source
- Solar
- Technologies
- Solar Photovoltaic
- Status
- Operating
Westport Stone & Sand Solar (CSG): FAQ
- Where is Westport Stone & Sand Solar (CSG)?
- In Bristol 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 Westport Stone & Sand Solar (CSG)?
- 5 MW of nameplate capacity across 1 unit, as of the EIA-860M release for 2026-07.
- Who owns Westport Stone & Sand Solar (CSG)?
- EIA-860M names AES Clean Energy as the reporting entity. That is the operator of record on the survey, which is not always the ultimate owner.
- Is this the same as Westport Stone & Sand Solar (CSG) LLC?
- Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — AES Clean Energy here — not the project company that holds the asset. Project companies are commonly registered as an LLC carrying the plant's name, so a search for "Westport Stone & Sand Solar (CSG) LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
- Is Westport Stone & Sand Solar (CSG) still running?
- EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.