Seaboard Sheffield, LLC
Seaboard Sheffield, LLC is a 2 MW solar farm in Berkshire County, Massachusetts, operated by Navisun LLC. EIA-860M lists 1 generating unit here, inside ISO New England. Its unit 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
- 2 MW
- 2 MW net summer
- Generating units
- 1
- In service
- 2021
- EIA plant ID
- 67372
Where it is
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- County
- Berkshire County, Massachusetts
- Coordinates
- 42.1368, -73.3252
- Balancing authority
- ISNE
- Sector
- IPP Non-CHP
Units, technology and status
- Operator of record
- Navisun LLC
- Primary energy source
- Solar
- Technologies
- Solar Photovoltaic
- Status
- Operating
Seaboard Sheffield, LLC: FAQ
- Where is Seaboard Sheffield, LLC?
- In Berkshire 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 Seaboard Sheffield, LLC?
- 2 MW of nameplate capacity across 1 unit, as of the EIA-860M release for 2026-07.
- Who owns Seaboard Sheffield, LLC?
- EIA-860M names Navisun LLC as the reporting entity. That is the operator of record on the survey, which is not always the ultimate owner.
- Is Seaboard Sheffield, LLC still running?
- EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.