Stony Knoll Solar, LLC
Surry County, North Carolina · EIA plant ID 62820 · Operator: Duke Energy Renewables Services
Nameplate23MWSummer 23 MW
Generators1in service
Net generation44GWh12 mo to Dec 2025
Capacity factor22%solar units, summer MW
Heat rate—thermal plants only
First online2022
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) |
|---|---|---|---|
| 2022 | 37 | 22.3% | — |
| 2023 | 39.4 | 19.9% | — |
| 2024 | 33.5 | 16.9% | — |
| 2025 | 44 | 22.2% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| GEN1 | Solar Photovoltaic | PV | 22.6 | 22.6 | Mar 2022 | Operating | — | coming soon |
Owner / operator
Operator: Duke Energy Renewables Services. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Stony Knoll Solar, LLC | 100.0% | 23 MW |
Nearby plants
Within 80 km.
| Two Hearted Solar | 22 MW | 10.2 km |
| Yadkin 601 Farm | 3 MW | 10.5 km |
| 1008 Matthews Solar | 5 MW | 12.2 km |
| Hayes Solar, LLC | 3 MW | 13.3 km |
| Sugar Solar, LLC | 60 MW | 14.2 km |
| Partin Solar | 50 MW | 15 km |