GMP Solar/Storage-Milton Hybrid
Chittenden County, Vermont · EIA plant ID 62381 · Operator: Green Mountain Power Corp
Nameplate7MWSummer 7 MW
Generators2in service
Net generation7GWh12 mo to Aug 2026
Capacity factor17%solar units, summer MW
Heat rate—thermal plants only
First online2019
The 12-month figures include preliminary EIA-923 months, which EIA revises. Final data runs through Dec 2025.
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) |
|---|---|---|---|
| 2019 | 1.1 | 8.3% | — |
| 2020 | 6.1 | 16.9% | — |
| 2021 | 7.4 | 16.1% | — |
| 2022 | 8.9 | 18.1% | — |
| 2023 | 8.3 | 17.1% | — |
| 2024 | 8.7 | 18.2% | — |
| 2025 | 7.1 | 16.3% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| GMPBM | Batteries | BA | 2 | 2 | Sep 2019 | Operating | — | coming soon |
| GMPSM | Solar Photovoltaic | PV | 5 | 5 | Sep 2019 | Operating | — | coming soon |
Owner / operator
Operator: Green Mountain Power Corp. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| GMP VT Microgrid LLC | 100.0% | 7 MW |
Nearby plants
Within 80 km.
| VEC Magee Hill Solar | 1 MW | 4.2 km |
| Hinesburg | 2 MW | 4.3 km |
| Claire Solar Farm | 2 MW | 5.7 km |
| Chittenden County Solar Partners | 2 MW | 6 km |
| GMP Solar - Williston | 5 MW | 8.2 km |
| GMP Solar - Richmond | 2 MW | 8.4 km |