Spring Grove I
Surry County, Virginia · EIA plant ID 61986 · Operator: Dominion Energy Inc
Nameplate98MWSummer 98 MW
Generators1in service
Net generation198GWh12 mo to Aug 2026
Capacity factor23%solar units, summer MW
Heat rate—thermal plants only
First online2020
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) |
|---|---|---|---|
| 2020 | 19.5 | 13.6% | — |
| 2021 | 216.4 | 25.2% | — |
| 2022 | 177.7 | 20.7% | — |
| 2023 | 143.2 | 16.7% | — |
| 2024 | 156.3 | 18.2% | — |
| 2025 | 184.3 | 21.5% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| SGIS | Solar Photovoltaic | PV | 97.9 | 97.9 | Nov 2020 | 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% | 98 MW |
Nearby plants
Within 80 km.
| Spring Grove Solar 2 | 150 MW | 0.9 km |
| Colonial Trail West | 142 MW | 4.2 km |
| Fort Powhatan Solar | 150 MW | 17.2 km |
| Surry | 1,695 MW | 19.6 km |
| Gravel Neck | 408 MW | 20.3 km |
| Sycamore Cross Solar | — | 23.3 km |