Cenergy - Wiscasset (CSG)
Lincoln County, Maine · EIA plant ID 66878 · Operator: Luminace Sunbeam Development Holdings, LLC
Nameplate5MWSummer 5 MW
Generators1in service
Net generation8GWh12 mo to Dec 2025
Capacity factor19%solar units, summer MW
Heat rate—thermal plants only
First online2023
Monthly net generation
EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
Capacity factor by year
Net MWh ÷ (summer MW × hours), solar units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Heat rate applies to fuel-burning (thermal) units only.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2023 | 2.5 | 11.5% | — |
| 2024 | 8.5 | 19.4% | — |
| 2025 | 8.4 | 19.3% | — |
Generators
EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
| Gen ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| WIS | Solar Photovoltaic | PV | 5 | 5 | Jul 2023 | Operating | — | coming soon |
Owner / operator
Operator: Luminace Sunbeam Development Holdings, LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Luminace Sunbeam Development Holdings, LLC | 100.0% | 5 MW |
Nearby plants
Within 80 km.
| ME-EDFR-Phase I-Woolwich | 5 MW | 7 km |
| ME - EDFR - Phase I - Bristol | 5 MW | 14.9 km |
| Richmond Hill | 2 MW | 15.9 km |
| Augusta Road Bowdoin Solar, LLC | 4 MW | 20.3 km |
| SCS Harpswell 012903 Brunswick, LLC | 5 MW | 20.8 km |
| Brunswick Hydro | 20 MW | 21.6 km |