Corkwood Solar (CSG)
Penobscot County, Maine · EIA plant ID 67111 · Operator: NextGrid Corkwood, LLC
Nameplate5MWSummer 5 MW
Generators1in service
Net generation6GWh12 mo to Dec 2025
Capacity factor14%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 | 0.3 | 5.1% | — |
| 2024 | 5.4 | 13.4% | — |
| 2025 | 5.8 | 14.3% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| CORK | Solar Photovoltaic | PV | 4.6 | 4.6 | Nov 2023 | Operating | — | coming soon |
Owner / operator
Operator: NextGrid Corkwood, LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| NextGrid Corkwood, LLC | 100.0% | 5 MW |
Nearby plants
Within 80 km.
| Bangor Pacific Hydro | 13 MW | 1.7 km |
| Indeck West Enfield Energy Center | 28 MW | 3.1 km |
| Dynamic - Enfield Hammett Road CSG | 5 MW | 3.9 km |
| Crooked Trail Solar | — | 14.1 km |
| Lincoln ME 1 | 5 MW | 14.5 km |
| Pumpkin Hill | 1 MW | 17.7 km |