Wissota
Chippewa County, Wisconsin · EIA plant ID 4015 · Operator: Northern States Power Co - Minnesota
Nameplate39MWSummer 18 MW
Generators6in service
Net generation118GWh12 mo to Dec 2025
Capacity factor75%hydro units, summer MW
Heat rate—thermal plants only
First online1917
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) |
|---|---|---|---|
| 2001 | 142.7 | 44.0% | — |
| 2002 | 182.7 | 56.4% | — |
| 2003 | 109.8 | 33.9% | — |
| 2004 | 112.4 | 34.6% | — |
| 2005 | 103.1 | 32.2% | — |
| 2006 | 90.8 | 28.3% | — |
| 2007 | 88.9 | 27.7% | — |
| 2008 | 94.9 | 29.5% | — |
| 2009 | 75.6 | 23.6% | — |
| 2010 | 154.2 | 48.1% | — |
| 2011 | 137.5 | 87.2% | — |
| 2012 | 94.7 | 54.5% | — |
| 2013 | 125.8 | 66.5% | — |
| 2014 | 177.3 | 112.5% | — |
| 2015 | 169.9 | 107.8% | — |
| 2016 | 199 | 125.8% | — |
| 2017 | 186.7 | 118.4% | — |
| 2018 | 158.3 | 100.4% | — |
| 2019 | 205.7 | 130.4% | — |
| 2020 | 199 | 125.9% | — |
| 2021 | 127.8 | 81.1% | — |
| 2022 | 124.8 | 79.1% | — |
| 2023 | 132.9 | 84.3% | — |
| 2024 | 135.9 | 86.0% | — |
| 2025 | 118.3 | 75.0% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 1 | Conventional Hydroelectric | HY | 6 | 3 | Jan 1917 | Operating | — | coming soon |
| 2 | Conventional Hydroelectric | HY | 7.7 | 3.1 | Jan 1917 | Operating | — | coming soon |
| 3 | Conventional Hydroelectric | HY | 6 | 3 | Jan 1917 | Operating | — | coming soon |
| 4 | Conventional Hydroelectric | HY | 7.7 | 3 | Jan 1917 | Operating | — | coming soon |
| 5 | Conventional Hydroelectric | HY | 6 | 2.9 | Jan 1917 | Operating | — | coming soon |
| 6 | Conventional Hydroelectric | HY | 6 | 3 | Jan 1917 | Operating | — | coming soon |
Owner / operator
Operator: Northern States Power Co - Minnesota. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Northern States Power Co - Minnesota | 100.0% | 39 MW |
Nearby plants
Within 80 km.
| Chippewa Falls | 22 MW | 3.9 km |
| Lake Hallie | 5 MW | 5.4 km |
| Lafayette DPC Solar | 1 MW | 5.6 km |
| Jim Falls | 60 MW | 13.6 km |
| Wheaton | 298 MW | 15 km |
| Dells | 12 MW | 18.1 km |