Sudbury Landfill
Sudbury Landfill is a 1 MW solar farm in Middlesex County, Massachusetts, operated by Heliovaas LLC. EIA-860M lists 3 generating units here, inside ISO New England. Its units entered service in 2013.
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
- 1.3 MW
- 1.3 MW net summer
- Generating units
- 3
- In service
- 2013
- EIA plant ID
- 58839
Where it is
Loading map…
- County
- Middlesex County, Massachusetts
- Coordinates
- 42.3639, -71.385
- Balancing authority
- ISNE
- Sector
- IPP Non-CHP
Units, technology and status
- Operator of record
- Heliovaas LLC
- Primary energy source
- Solar
- Technologies
- Solar Photovoltaic
- Status
- Operating
Sudbury Landfill: FAQ
- Where is Sudbury Landfill?
- 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 Sudbury Landfill?
- 1 MW of nameplate capacity across 3 units, as of the EIA-860M release for 2026-07.
- Who owns Sudbury Landfill?
- EIA-860M names Heliovaas LLC 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 Sudbury Landfill LLC?
- Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Heliovaas LLC 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 "Sudbury Landfill LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
- Is Sudbury Landfill still running?
- EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.