Willow Island Hydroelectric Plant
Pleasants County, West Virginia · EIA plant ID 57401 · Operator: American Mun Power-Ohio, Inc
Nameplate44MWSummer 44 MW
Generators2in service
Net generation198GWh12 mo to Dec 2025
Capacity factor51%hydro units, summer MW
Heat rate—thermal plants only
First online2016
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), hydro 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) |
|---|---|---|---|
| 2015 | 0 | — | — |
| 2016 | 231.9 | 62.6% | — |
| 2017 | 230.5 | 59.8% | — |
| 2018 | 207.7 | 53.9% | — |
| 2019 | 243.6 | 63.2% | — |
| 2020 | 207.5 | 53.7% | — |
| 2021 | 265.6 | 68.9% | — |
| 2022 | 212.8 | 55.2% | — |
| 2023 | 220.4 | 57.2% | — |
| 2024 | 182.5 | 47.2% | — |
| 2025 | 198.3 | 51.4% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| WIG1 | Conventional Hydroelectric | HY | 22 | 22 | Jan 2016 | Operating | — | coming soon |
| WIG2 | Conventional Hydroelectric | HY | 22 | 22 | Feb 2016 | Operating | — | coming soon |
Owner / operator
Operator: American Mun Power-Ohio, Inc. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| American Mun Power-Ohio, Inc | 100.0% | 44 MW |
Nearby plants
Within 80 km.
| FirstEnergy Pleasants Power Station | 1,368 MW | 2.3 km |
| Pleasants Energy LLC | 383 MW | 4.9 km |
| Washington Energy Facility | 715 MW | 38.1 km |
| Waterford Power, LLC | 922 MW | 39.5 km |
| Belleville Dam | 42 MW | 44.8 km |
| Anadarko | 8 MW | 47.7 km |