Sandstone Rapids
Hydro power plant in Marinette County, Wisconsin. 3.8 MW of nameplate capacity across 2 generators, operated by Wisconsin Public Service Corp.
Also known as Sandstone Rapids Hydro · EIA plant 4074
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Key facts
- Capacity
- 3.8 MWNameplate
- Generators
- 2 operatingEIA-860M, August 2026
- Operating since
- January 1925First generator online
- Operator
- Wisconsin Public Service CorpEIA operator ID 20860
- Grid
- MISOBalancing authority MISO
- Price nodes
- 1 MISO nodeResource nodes with prices
- Location
- Marinette County, WI45.2333, −88.0678
- EIA plant ID
- 4074EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Sandstone Rapids produces
Free · EIA-923Net generation, 2025
9.74 GWh
9,739 MWh, final
Capacity factor, 2025
29.3%
2024: 26.3%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
8.0–23.5
GWh a year. Low 2022, high 2016
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 8,575 | Not reported | 12 of 12 |
| 2001 | 9,529 | Not reported | 12 of 12 |
| 2002 | 13,368 | Not reported | 12 of 12 |
| 2003 | 10,536 | Not reported | 12 of 12 |
| 2004 | 12,557 | Not reported | 12 of 12 |
| 2005 | 9,453 | Not reported | 12 of 12 |
| 2006 | 8,740 | Not reported | 12 of 12 |
| 2007 | 8,053 | Not reported | 12 of 12 |
| 2008 | 8,711 | Not reported | 12 of 12 |
| 2009 | 6,622 | Not reported | 12 of 12 |
| 2010 | 9,123 | 27.4% | 12 of 12 |
| 2011 | 9,310 | 28.0% | 12 of 12 |
| 2012 | 8,211 | 24.6% | 12 of 12 |
| 2013 | 10,182 | 30.6% | 12 of 12 |
| 2014 | 13,127 | 39.4% | 12 of 12 |
| 2015 | 13,418 | 40.3% | 12 of 12 |
| 2016 | 23,481 | 70.3% | 12 of 12 |
| 2017 | 18,209 | 54.7% | 12 of 12 |
| 2018 | 13,484 | 40.5% | 12 of 12 |
| 2019 | 16,572 | 49.8% | 12 of 12 |
| 2020 | 18,004 | 53.9% | 12 of 12 |
| 2021 | 11,162 | 33.5% | 12 of 12 |
| 2022 | 7,983 | 24.0% | 12 of 12 |
| 2023 | 8,166 | 24.5% | 12 of 12 |
| 2024 | 8,770 | 26.3% | 12 of 12 |
| 2025 | 9,739 | 29.3% | 12 of 12 |
| 2026 (provisional, partial year) | Not reported | Not reported | 0 of 7 |
* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.
Power prices and basis
Free account · MISOEmissions
Free · EPA CAMPDNo EPA emissions units are linked to this plant.
Water use
Free · EIA-923 cooling, USGSNo EIA cooling-water record for this plant in 2024. Plants without steam cooling, such as wind, solar and batteries, do not report cooling water.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| 1 | Conventional Hydroelectric | 1.9 | January 1925 |
| 2 | Conventional Hydroelectric | 1.9 | January 1925 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists Wisconsin Public Service Corp as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
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Power plants near Sandstone Rapids
More plants operated by Wisconsin Public Service Corp
Questions about Sandstone Rapids
How much power does Sandstone Rapids produce?
Sandstone Rapids reported 9,739 MWh (9.74 GWh) of net generation in 2025, a 29.3% capacity factor on 3.8 MW of nameplate capacity.
Where is Sandstone Rapids?
Sandstone Rapids is in Marinette County, Wisconsin, at 45.2333, −88.0678. It is in the Midcontinent Independent Transmission System Operator, Inc.. balancing area (MISO).
Who operates Sandstone Rapids?
EIA-860M for August 2026 lists Wisconsin Public Service Corp as the operator (EIA operator ID 20860). The operator is not always the owner.
When did Sandstone Rapids start operating?
Its first generator began operating in January 1925, according to EIA-860M.
Does InfraMap have power prices for Sandstone Rapids?
Yes. InfraMap has MISO day-ahead and real-time prices at 1 price node linked to Sandstone Rapids, with the hub price and node-to-hub basis. Prices are free with an InfraMap account; pricing node names are part of InfraMap Pro.
Sources
- EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
- EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
- MISO day-ahead and real-time prices; node and hub assignments as of 2026-10-05
- Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page