Monson Solar
Monson Solar is a 3 MW solar farm in Hampden County, Massachusetts, operated by Altus Power America Management, LLC. EIA-860M lists 1 generating unit here, inside ISO New England. Its unit entered service in 2014.
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
- 3 MW
- 3 MW net summer
- Generating units
- 1
- In service
- 2014
- EIA plant ID
- 59464
Where it is
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- County
- Hampden County, Massachusetts
- Coordinates
- 42.1244, -72.3325
- Balancing authority
- ISNE
- Sector
- IPP Non-CHP
Units, technology and status
- Operator of record
- Altus Power America Management, LLC
- Primary energy source
- Solar
- Technologies
- Solar Photovoltaic
- Status
- Operating
Every plant Altus Power America Management, LLC reports to EIA →
Monson Solar: FAQ
- Where is Monson Solar?
- In Hampden 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 Monson Solar?
- 3 MW of nameplate capacity across 1 unit, as of the EIA-860M release for 2026-07.
- Who owns Monson Solar?
- EIA-860M names Altus Power America Management, 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 Monson Solar LLC?
- Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Altus Power America Management, 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 "Monson Solar LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
- Is Monson Solar still running?
- EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.