Potato Rapids
Marinette County, Wisconsin · EIA plant ID 4071 · Operator: Wisconsin Public Service Corp
Nameplate1MWSummer 1 MW
Generators3in service
Net generation4GWh12 mo to Dec 2025
Capacity factor37%hydro units, summer MW
Heat rate—thermal plants only
First online1921
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 | 3.8 | 144.6% | — |
| 2002 | 4.6 | 175.1% | — |
| 2003 | 3.8 | 105.4% | — |
| 2004 | 4.3 | 126.5% | — |
| 2005 | 3.1 | 92.0% | — |
| 2006 | 3.5 | 82.0% | — |
| 2007 | 2.6 | 50.3% | — |
| 2008 | 3.1 | 58.8% | — |
| 2009 | 2.5 | 47.5% | — |
| 2010 | 4.3 | 82.4% | — |
| 2011 | 4.5 | 84.9% | — |
| 2012 | 3.4 | 64.1% | — |
| 2013 | 4.5 | 85.9% | — |
| 2014 | 4.9 | 92.3% | — |
| 2015 | 5.3 | 150.8% | — |
| 2016 | 5 | 142.9% | — |
| 2017 | 4.1 | 117.6% | — |
| 2018 | 5.7 | 161.6% | — |
| 2019 | 7 | 61.6% | — |
| 2020 | 7.4 | 65.1% | — |
| 2021 | 5.1 | 44.7% | — |
| 2022 | 4.8 | 41.8% | — |
| 2023 | 4.2 | 36.5% | — |
| 2024 | 4.2 | 36.8% | — |
| 2025 | 4.2 | 37.1% | — |
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 | 0.5 | 0.5 | Jun 1926 | Operating | — | coming soon |
| 2 | Conventional Hydroelectric | HY | 0.4 | 0.4 | May 1921 | Operating | — | coming soon |
| 3 | Conventional Hydroelectric | HY | 0.4 | 0.4 | May 1921 | Operating | — | coming soon |
Owner / operator
Operator: Wisconsin Public Service Corp. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Wisconsin Public Service Corp | 100.0% | 1 MW |
Nearby plants
Within 80 km.
| West Marinette 34 | 83 MW | 6.2 km |
| West Marinette | 187 MW | 6.3 km |
| Park Mill | 2 MW | 8.5 km |
| Menominee Mill Marinette | 2 MW | 9.5 km |
| Sandstone Rapids | 4 MW | 27.7 km |
| Grand Rapids | 8 MW | 28.1 km |