Rock Rapids
Oil power plant in Lyon County, Iowa. 2.5 MW of nameplate capacity across 1 generator, operated by Rock Rapids Municipal Utility - (IA).
Also known as EIA plant 1181
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 2.5 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- April 1968First generator online
- Operator
- Rock Rapids Municipal Utility - (IA)EIA operator ID 16206
- Grid
- SPPBalancing authority SWPP
- Price nodes
- None linkedNo verified ISO node
- Location
- Lyon County, IA43.4294, −96.1692
- EIA plant ID
- 1181EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Rock Rapids produces
Free · EIA-923Net generation, 2025
20 MWh
20 MWh, final
Capacity factor, 2025
0.1%
2024: 0.0%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
0.0–214.0
MWh a year. Low 2024, high 2021
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 0 | Not reported | 12 of 12 |
| 2001 | 17 | Not reported | 12 of 12 |
| 2002 | 35 | Not reported | 12 of 12 |
| 2003 | 32 | Not reported | 12 of 12 |
| 2004 | 30 | Not reported | 12 of 12 |
| 2005 | 33 | Not reported | 12 of 12 |
| 2006 | 37 | Not reported | 12 of 12 |
| 2007 | 34 | Not reported | 12 of 12 |
| 2008 | 27 | Not reported | 12 of 12 |
| 2009 | 29 | Not reported | 12 of 12 |
| 2010 | 31 | 0.1% | 12 of 12 |
| 2011 | 18 | 0.1% | 12 of 12 |
| 2012 | 11 | 0.1% | 12 of 12 |
| 2013 | 1 | 0.0% | 12 of 12 |
| 2014 | 21 | 0.1% | 12 of 12 |
| 2015 | 27 | 0.1% | 12 of 12 |
| 2016 | 16 | 0.1% | 12 of 12 |
| 2017 | 14 | 0.1% | 12 of 12 |
| 2018 | 18 | 0.1% | 12 of 12 |
| 2019 | 35 | 0.2% | 12 of 12 |
| 2020 | 8 | 0.0% | 12 of 12 |
| 2021 | 214 | 1.0% | 12 of 12 |
| 2022 | 14 | 0.1% | 12 of 12 |
| 2023 | 13 | 0.1% | 12 of 12 |
| 2024 | 0 | 0.0% | 12 of 12 |
| 2025 | 20 | 0.1% | 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 accountNo verified ISO price node is linked to this plant, or its price history could not load.
Emissions
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.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| 1 | Petroleum Liquids | 2.5 | April 1968 |
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 Rock Rapids Municipal Utility - (IA) as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
Generation potential vs reported
Monthly potential at seasonal net capability, next to EIA-923 output. Shows how much of the plant's capability was used.
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Questions about Rock Rapids
How much power does Rock Rapids produce?
Rock Rapids reported 20 MWh (20 MWh) of net generation in 2025, a 0.1% capacity factor on 2.5 MW of nameplate capacity.
Where is Rock Rapids?
Rock Rapids is in Lyon County, Iowa, at 43.4294, −96.1692. It is in the Southwest Power Pool balancing area (SWPP).
Who operates Rock Rapids?
EIA-860M for August 2026 lists Rock Rapids Municipal Utility - (IA) as the operator (EIA operator ID 16206). The operator is not always the owner.
When did Rock Rapids start operating?
Its first generator began operating in April 1968, according to EIA-860M.
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)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page