Macksburg Wind Project
Wind power plant in Madison County, Iowa. 119.6 MW of nameplate capacity across 1 generator, operated by MidAmerican Energy Co.
Also known as Macksburg Wind Farm · Macksburg · EIA plant 58885
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Key facts
- Capacity
- 119.6 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- December 2014First generator online
- Operator
- MidAmerican Energy CoEIA operator ID 12341
- Grid
- MISOBalancing authority MISO
- Price nodes
- 1 MISO nodeResource nodes with prices
- Location
- Madison County, IA41.2092, −94.1036
- EIA plant ID
- 58885EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Macksburg Wind Project produces
Free · EIA-923Net generation, 2025
249 GWh
248,695 MWh, final
Capacity factor, 2025
23.7%
2024: 31.4%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
248.7–388.9
GWh a year. Low 2025, high 2015
| 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 | Not reported | Not reported | 0 of 12 |
| 2009 | Not reported | Not reported | 0 of 12 |
| 2010 | Not reported | Not reported | 0 of 12 |
| 2011 | Not reported | Not reported | 0 of 12 |
| 2012 | Not reported | Not reported | 0 of 12 |
| 2013 | Not reported | Not reported | 0 of 12 |
| 2014 | 19,682 | Not reported | 1 of 12 |
| 2015 | 388,857 | 37.1% | 12 of 12 |
| 2016 | 374,541 | 35.7% | 12 of 12 |
| 2017 | 367,493 | 35.1% | 12 of 12 |
| 2018 | 340,762 | 32.5% | 12 of 12 |
| 2019 | 336,094 | 32.1% | 12 of 12 |
| 2020 | 320,713 | 30.5% | 12 of 12 |
| 2021 | 306,103 | 29.2% | 12 of 12 |
| 2022 | 376,311 | 35.9% | 12 of 12 |
| 2023 | 322,311 | 30.8% | 12 of 12 |
| 2024 | 329,946 | 31.4% | 12 of 12 |
| 2025 | 248,695 | 23.7% | 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 |
|---|---|---|---|
| MBWF | Onshore Wind Turbine | 119.6 | December 2014 |
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 MidAmerican Energy Co 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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Power plants near Macksburg Wind Project
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Questions about Macksburg Wind Project
How much power does Macksburg Wind Project produce?
Macksburg Wind Project reported 248,695 MWh (249 GWh) of net generation in 2025, a 23.7% capacity factor on 119.6 MW of nameplate capacity.
Where is Macksburg Wind Project?
Macksburg Wind Project is in Madison County, Iowa, at 41.2092, −94.1036. It is in the Midcontinent Independent Transmission System Operator, Inc.. balancing area (MISO).
Who operates Macksburg Wind Project?
EIA-860M for August 2026 lists MidAmerican Energy Co as the operator (EIA operator ID 12341). The operator is not always the owner.
When did Macksburg Wind Project start operating?
Its first generator began operating in December 2014, according to EIA-860M.
Does InfraMap have power prices for Macksburg Wind Project?
Yes. InfraMap has MISO day-ahead and real-time prices at 1 price node linked to Macksburg Wind Project, 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)
- Project names from the USGS U.S. Wind Turbine Database
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page