Osceola Windpower II
Wind power plant in Osceola County, Iowa. 49.6 MW of nameplate capacity across 1 generator, operated by Osceola Windpower II.
Also known as EIA plant 56913
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 49.6 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- September 2008First generator online
- Operator
- Osceola Windpower IIEIA operator ID 56121
- Grid
- MISOBalancing authority MISO
- Price nodes
- 1 MISO nodeResource nodes with prices
- Location
- Osceola County, IA43.4303, −95.4167
- EIA plant ID
- 56913EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Osceola Windpower II produces
Free · EIA-923Net generation, 2025
200 GWh
200,272 MWh, final
Capacity factor, 2025
46.1%
2024: 46.1%
January to July 2026
114 GWh
Provisional
Range, 2015 to 2025
129.9–220.0
GWh a year. Low 2018, high 2022
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | Not reported | Not reported | 0 of 12 |
| 2001 | Not reported | Not reported | 0 of 12 |
| 2002 | Not reported | Not reported | 0 of 12 |
| 2003 | Not reported | Not reported | 0 of 12 |
| 2004 | Not reported | Not reported | 0 of 12 |
| 2005 | Not reported | Not reported | 0 of 12 |
| 2006 | Not reported | Not reported | 0 of 12 |
| 2007 | Not reported | Not reported | 0 of 12 |
| 2008 | 41,730 | Not reported | 4 of 12 |
| 2009 | 130,390 | Not reported | 12 of 12 |
| 2010 | 144,016 | 32.9% | 12 of 12 |
| 2011 | 156,260 | 35.7% | 12 of 12 |
| 2012 | 167,476 | 38.1% | 12 of 12 |
| 2013 | 135,965 | 31.0% | 12 of 12 |
| 2014 | 157,842 | 36.0% | 12 of 12 |
| 2015 | 137,668 | 31.4% | 12 of 12 |
| 2016 | 150,447 | 34.3% | 12 of 12 |
| 2017 | 150,096 | 34.3% | 12 of 12 |
| 2018 | 129,935 | 29.7% | 12 of 12 |
| 2019 | 151,165 | Not reported | 12 of 12 |
| 2020 | 201,517 | 46.3% | 12 of 12 |
| 2021 | 183,905 | 42.3% | 12 of 12 |
| 2022 | 220,002 | 50.6% | 12 of 12 |
| 2023 | 203,623 | 46.9% | 12 of 12 |
| 2024 | 200,999 | 46.1% | 12 of 12 |
| 2025 | 200,272 | 46.1% | 12 of 12 |
| 2026 (provisional, partial year) | 114,048 | 45.2% | 7 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 |
|---|---|---|---|
| CL25 | Onshore Wind Turbine | 49.6 | September 2008 |
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 Osceola Windpower II as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
Modeled curtailment
A range, not one number. The lower bound counts hours inside the production tax credit window; the upper bound is the no-credit case.
Expected vs reported generation
Monthly modeled expected output and physical potential next to EIA-923 reported output.
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Questions about Osceola Windpower II
How much power does Osceola Windpower II produce?
Osceola Windpower II reported 200,272 MWh (200 GWh) of net generation in 2025, a 46.1% capacity factor on 49.6 MW of nameplate capacity. From January to July 2026 it reported 114 GWh, which is provisional.
Where is Osceola Windpower II?
Osceola Windpower II is in Osceola County, Iowa, at 43.4303, −95.4167. It is in the Midcontinent Independent Transmission System Operator, Inc.. balancing area (MISO).
Who operates Osceola Windpower II?
EIA-860M for August 2026 lists Osceola Windpower II as the operator (EIA operator ID 56121). The operator is not always the owner.
When did Osceola Windpower II start operating?
Its first generator began operating in September 2008, according to EIA-860M.
Does InfraMap have power prices for Osceola Windpower II?
Yes. InfraMap has MISO day-ahead and real-time prices at 1 price node linked to Osceola Windpower II, 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
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page