Twin Falls (WI)
Florence County, Wisconsin · EIA plant ID 59836 · Operator: Wisconsin Electric Power Co
Nameplate9MWSummer 9 MW
Generators2in service
Net generation37GWh12 mo to Dec 2025
Capacity factor46%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) |
|---|---|---|---|
| 2016 | 17 | 41.8% | — |
| 2017 | 54.2 | 67.3% | — |
| 2018 | 42.8 | 53.1% | — |
| 2019 | 48.4 | 60.1% | — |
| 2020 | 57 | 70.6% | — |
| 2021 | 38 | 47.1% | — |
| 2022 | 41.5 | 51.5% | — |
| 2023 | 37.8 | 46.9% | — |
| 2024 | 30.7 | 38.0% | — |
| 2025 | 37 | 45.9% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 11 | Conventional Hydroelectric | HY | 4.6 | 4.6 | Jul 2016 | Operating | — | coming soon |
| 12 | Conventional Hydroelectric | HY | 4.6 | 4.6 | Jul 2016 | Operating | — | coming soon |
Owner / operator
Operator: Wisconsin Electric Power Co. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Wisconsin Electric Power Co | 100.0% | 9 MW |
Nearby plants
Within 80 km.
| Kingsford | 7 MW | 8.3 km |
| Big Quinnesec 61 | 4 MW | 9.7 km |
| Big Quinnesec 92 | 16 MW | 9.7 km |
| Verso Paper Quinnesec Mich Mill | 56 MW | 12.4 km |
| Little Quinnesec Falls Hydro Project | 9 MW | 12.7 km |
| Michigamme Falls | 10 MW | 13.3 km |