- Clean firm
- Operating
- 10 · 100 · 1,000 MW
Map
- Clean firm
- Operating
Johnson Falls: location. Basemap: Protomaps, © OpenStreetMap contributors, ODbL.
Johnson Falls
Power plant · Hydro
Key facts
Power plant · Hydroran 36% of 2025 Operating- Capacity
- Capacity: sourceEIA-860M · Open licenseMW
- Commissioned
- 1923
- Net generation, 2025
- 10,679 MWh
- Grid
- 25 kV to Wisconsin Public Service Corp (MISO)
- Location
- Marinette County, Wisconsin
- Operated by
- Wisconsin Public Service CorpSourceEIA-860M Preliminary Monthly Electric Generator Inventory
Operations
- Net generation, 2025
- 10,679
MWh - Fuel burned, 2025
- 36,435
MMBtu - Capacity factor, 2025
- 35.9
% - Heat rate, 2025
- Not stated
| Year | Net generation (MWh) | Fuel burned (MMBtu) | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|---|
| 2025 | 10,679 | 36,435 | 35.9% | — |
| 2024 | 10,244 | 34,952 | 34.3% | — |
| 2023 | 10,286 | 35,095 | 34.5% | — |
| 2022 | 10,894 | 37,171 | 36.6% | — |
| 2021 | 10,826 | 95,746 | 36.4% | — |
| 2020 | 16,496 | 144,619 | 55.2% | — |
| 2019 | 11,966 | 106,557 | 40.2% | — |
| 2018 | 11,171 | 101,701 | 37.5% | — |
| 2017 | 15,883 | 146,331 | 53.3% | — |
| 2016 | 12,664 | 116,915 | 42.4% | — |
| 2015 | 12,742 | 118,743 | 42.8% | — |
| 2014 | 12,186 | 115,890 | 40.9% | — |
| 2013 | 9,567 | 91,278 | 32.1% | — |
| 2012 | 7,226 | 68,761 | 24.2% | — |
| 2011 | 8,009 | 77,817 | 26.9% | — |
| 2010 | 7,943 | 77,492 | 26.7% | — |
| 2009 | 5,787 | 56,480 | 19.4% | — |
| 2008 | 7,985 | 78,684 | 26.7% | — |
| 2007 | 7,299 | 72,146 | 24.5% | — |
| 2006 | 8,353 | 82,851 | 28.1% | — |
| 2005 | 7,776 | 77,752 | 26.1% | — |
| 2004 | 11,715 | 117,408 | 39.2% | — |
| 2003 | 10,105 | 103,485 | 33.9% | — |
| 2002 | 12,350 | 125,637 | 41.5% | — |
| 2001 | 8,953 | 92,511 | 30.1% | — |
How these are worked out
Net generation and fuel burned are the monthly figures EIA publishes in its bulk electricity file, from the plant's Form 923 reports; a year is the sum of its months. Capacity factor is a full year's net generation over today's nameplate capacity times the hours in that year (8,784 in a leap year), so a plant uprated or partly retired since reads against its current size; heat rate is fuel burned over net generation, for plants that burn fuel. A year with fewer than twelve months stated has no capacity factor, and a value outside the plausible range is left blank rather than shown. By month, the charts apply the same rules to each month's own hours and fuel.