Montross Solar
Westmoreland County, Virginia · EIA plant ID 64093 · Operator: Dominion Energy Inc
Nameplate20MWSummer 20 MW
Generators1in service
Net generation37GWh12 mo to Dec 2025
Capacity factor21%solar units, summer MW
Heat rate—thermal plants only
First online2018
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) |
|---|---|---|---|
| 2020 | 39.4 | 22.4% | — |
| 2021 | 38.8 | 22.2% | — |
| 2022 | 40.6 | 23.2% | — |
| 2023 | 34.6 | 19.8% | — |
| 2024 | 37 | 21.1% | — |
| 2025 | 37.4 | 21.3% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| MOSO | Solar Photovoltaic | PV | 20 | 20 | Dec 2018 | Operating | — | coming soon |
Owner / operator
Operator: Dominion Energy Inc. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Dominion Energy Inc | 100.0% | 20 MW |
Nearby plants
Within 80 km.
| Springfield Solar | 2 MW | 2.1 km |
| Westmoreland County Solar Project | 20 MW | 8.6 km |
| Hemings Solar | 5 MW | 13.5 km |
| Northern Neck | 83 MW | 15.6 km |
| Gardy's Mill Solar | 14 MW | 17.5 km |
| Essex Solar Center | 20 MW | 27 km |