Cenergy - Waterville (CSG)
Cenergy - Waterville (CSG) is a 5 MW solar farm in Kennebec County, Maine, operated by Luminace Sunbeam Development Holdings, LLC. EIA-860M lists 1 generating unit here, inside ISO New England. Its unit entered service in 2023.
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
- 2023
- EIA plant ID
- 66876
Where it is
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- County
- Kennebec County, Maine
- Coordinates
- 44.5387, -69.6689
- Balancing authority
- ISNE
- Sector
- IPP Non-CHP
Units, technology and status
- Operator of record
- Luminace Sunbeam Development Holdings, LLC
- Primary energy source
- Solar
- Technologies
- Solar Photovoltaic
- Status
- Operating
Every plant Luminace Sunbeam Development Holdings, LLC reports to EIA →
Cenergy - Waterville (CSG): FAQ
- Where is Cenergy - Waterville (CSG)?
- In Kennebec County, Maine (ME). 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 Cenergy - Waterville (CSG)?
- 5 MW of nameplate capacity across 1 unit, as of the EIA-860M release for 2026-07.
- Who owns Cenergy - Waterville (CSG)?
- EIA-860M names Luminace Sunbeam Development Holdings, 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 Cenergy - Waterville (CSG) LLC?
- Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Luminace Sunbeam Development Holdings, 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 "Cenergy - Waterville (CSG) LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
- Is Cenergy - Waterville (CSG) still running?
- EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.