Williamson
Wayne County, New York · EIA plant ID 63409 · Operator: Solar Planet Power
Nameplate2MWSummer 2 MW
Generators1in service
Net generation2GWh12 mo to Dec 2025
Capacity factor13%solar units, summer MW
Heat rate—thermal plants only
First online2019
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 | 3.3 | 22.2% | — |
| 2020 | 2.8 | 15.8% | — |
| 2021 | 2.2 | 12.7% | — |
| 2022 | 1.8 | 10.3% | — |
| 2023 | 1.7 | 9.9% | — |
| 2024 | 1.8 | 10.0% | — |
| 2025 | 2.3 | 12.9% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 100 | Solar Photovoltaic | PV | 2 | 2 | Mar 2019 | Operating | — | coming soon |
Owner / operator
Operator: Solar Planet Power. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Solar Advocate Development LLC | 100.0% | 2 MW |
Nearby plants
Within 80 km.
| Arcadia | 3 MW | 1.6 km |
| Eddy | 2 MW | 11.7 km |
| Brickchurch Solar | 2 MW | 12.1 km |
| NY Newark St Rt 31 - Environomics S1 | 5 MW | 12.6 km |
| NY Newark ST RT 31 - Environomics S2 | 4 MW | 12.7 km |
| Town of Williamson Landfill PV | 1 MW | 13.5 km |