Largest power plants in Iowa
The 50 largest power plants in Iowa by nameplate capacity, from EIA-860M for August 2026, with 2025 net generation from EIA-923.
Plants
50
Nameplate capacity
17,111 MW
Net generation, 2025
55.3 TWh
Top 50 by nameplate capacity
| # | Plant | MW | GWh, 2025 | Capacity factor |
|---|---|---|---|---|
| 1 | Walter Scott Jr Energy CenterPottawattamie County · Coal | 1,648 | 5,979 | 41.4% |
| 2 | LouisaLouisa County · Coal | 812 | 4,534 | 63.8% |
| 3 | OttumwaWapello County · Coal | 726 | 2,833 | 44.5% |
| 4 | Marshalltown Generating StationMarshall County · Natural gas | 709 | 3,178 | 51.2% |
| 5 | George Neal SouthWoodbury County · Coal | 696 | 1,835 | 30.1% |
| 6 | Emery StationCerro Gordo County · Natural gas | 603 | 2,455 | 46.5% |
| 7 | George Neal NorthWoodbury County · Coal | 584 | 1,808 | 35.3% |
| 8 | Greater Des MoinesPolk County · Natural gas | 576 | 1,851 | 36.7% |
| 9 | Highland Wind Project (IA)O'Brien County · Wind | 502 | 1,554 | 35.3% |
| 10 | Orient Wind FarmAdair County · Wind | 501 | 1,820 | 41.5% |
| 11 | Rolling Hills Wind FarmCass County · Wind | 484 | 1,577 | 37.2% |
| 12 | Beaver Creek WindBoone County · Wind | 340 | 1,258 | 42.2% |
| 13 | North EnglishPoweshiek County · Wind | 340 | 1,321 | 44.3% |
| 14 | Palo Alto Wind FarmPalo Alto County · Wind | 340 | 1,454 | 48.8% |
| 15 | Arbor Hill Wind FarmAdair County · Wind | 310 | 1,148 | 42.3% |
| 16 | Ida Grove WindIda County · Wind | 301 | 1,079 | 40.9% |
| 17 | Pioneer Prairie Wind FarmMitchell County · Wind | 300 | 859 | 32.7% |
| 18 | Upland PrairieClay County · Wind | 299 | 1,085 | 41.4% |
| 19 | Archer Daniels Midland Cedar RapidsLinn County · Coal | 295 | 990 | 38.4% |
| 20 | Burlington (IA)Des Moines County · Natural gas | 291 | 16.3 | 0.6% |
| 21 | Pomeroy Wind FarmPocahontas County · Wind | 286 | 1,003 | 40.0% |
| 22 | Muscatine Plant #1Muscatine County · Coal | 276 | 60.2* | 14.9% |
| 23 | Lundgren Wind ProjectWebster County · Wind | 271 | 605 | – |
| 24 | ElectrifarmBlack Hawk County · Natural gas | 264 | 16.7 | 0.7% |
| 25 | Southern Hills Wind FarmUnion County · Wind | 254 | 814 | 36.6% |
| 26 | Diamond Trail Wind FarmIowa County · Wind | 253 | 863 | 39.0% |
| 27 | O'Brien WindO'Brien County · Wind | 250 | 851 | 38.8% |
| 28 | Wever Solar (150MW)Lee County · Solar and battery storage | 249 | 260 | 19.8% |
| 29 | Great Pathfinder WindHamilton County · Wind | 224 | 810 | 41.2% |
| 30 | Shenandoah Hills Wind FarmPage County · Wind | 214 | 26.7* | – |
| 31 | Glaciers Edge Wind ProjectCherokee County · Wind | 212 | 828 | 44.7% |
| 32 | Eclipse Wind FarmGuthrie County · Wind | 207 | 832 | 45.9% |
| 33 | Ledyard Windpower, LLCKossuth County · Wind | 207 | 596 | 32.9% |
| 34 | Plymouth WindPlymouth County · Wind | 203 | 800 | 45.0% |
| 35 | Chickasaw Wind FarmChickasaw County · Wind | 202 | 645 | 36.4% |
| 36 | Whispering Willow NorthFranklin County · Wind | 201 | 734 | 41.6% |
| 37 | CenturyHamilton County · Wind | 201 | 609 | 34.5% |
| 38 | Ida Grove IIIda County · Wind | 201 | 727 | 41.3% |
| 39 | FPL Energy Crystal Lake Wind II LLCHancock County · Wind | 200 | 722 | 41.2% |
| 40 | Heartland Divide IIAudubon County · Wind | 200 | 798 | 45.6% |
| 41 | Golden PlainsWinnebago County · Wind | 200 | 737 | 42.1% |
| 42 | Whispering Willow Wind Farm - EastFranklin County · Wind | 200 | 405 | 23.1% |
| 43 | Turtle Creek Wind Farm LLCMitchell County · Wind | 199 | 720 | 41.3% |
| 44 | Prairie CreekLinn County · Natural gas and coal | 199 | 95.3 | – |
| 45 | MarshalltownMarshall County · Natural gas | 189 | 20.3 | 1.2% |
| 46 | ExiraAudubon County · Natural gas | 182 | 243 | 15.3% |
| 47 | Archer Daniels Midland ClintonClinton County · Coal | 180 | 716 | 45.4% |
| 48 | Pleasant HillPolk County · Natural gas | 180 | 48.7 | 3.1% |
| 49 | IntrepidBuena Vista County · Wind | 176 | 546 | 35.5% |
| 50 | Adair Wind FarmAdair County · Wind | 175 | 551 | 36.0% |
* Fewer than 12 months of 2025 reported, so the total is partial.
MW is the nameplate capacity of operating generators and batteries. Source: EIA-860M August 2026, published 2026-09-24, and EIA-923 2025. Page updated 2026-10-04. Data sources