Directory of Power Plants in Iowa
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| POET Biorefining - Gowrie | POET Biorefining - Gowrie | Gowrie, IA | Midcontinent Independent System Operator, Inc. (MISO) | 2.0 GWh | Oct 2018 | Dec 2025 | Natural Gas |
| Gowrie | Gowrie Municipal Utilities - (IA) | Gowrie, IA | Midcontinent Independent System Operator, Inc. (MISO) | 3.0 MWh | Dec 2012 | Dec 2025 | Distillate Fuel Oil |
| Graettinger | City of Graettinger - (IA) | Graettinger, IA | Midcontinent Independent System Operator, Inc. (MISO) | 49.0 MWh | Jul 1957 | Dec 2025 | Distillate Fuel Oil |
| Rippey Wind Farm | Greenbacker Renewable Energy Corporation | Grand Junction, IA | Midcontinent Independent System Operator, Inc. (MISO) | 166.6 GWh | Jul 2012 | Dec 2025 | Wind |
| Grand Junction | City of Grand Junction - (IA) | Grand Junction, IA | Midcontinent Independent System Operator, Inc. (MISO) | 41.0 MWh | Nov 1994 | Dec 2025 | Distillate Fuel Oil |
| Elk Wind Farm | Greenbacker Renewable Energy Corporation | Greeley, IA | Midcontinent Independent System Operator, Inc. (MISO) | 172.9 GWh | Nov 2011 | Dec 2025 | Wind |
| Wolverine | Wolverine Wind Energy, LLC | Greenfield, IA | Midcontinent Independent System Operator, Inc. (MISO) | 4.8 GWh | Sep 2010 | Dec 2025 | Wind |
| Sky Volt | Sky Volt, LLC | Greenfield, IA | Midcontinent Independent System Operator, Inc. (MISO) | 4.5 GWh | Jul 2012 | Dec 2025 | Wind |
| Downtown Generation Plant | City of Greenfield - (IA) | Greenfield, IA | Midcontinent Independent System Operator, Inc. (MISO) | 15.0 MWh | Jun 2020 | Dec 2025 | Distillate Fuel Oil |
| North Generation Plant | City of Greenfield - (IA) | Greenfield, IA | Midcontinent Independent System Operator, Inc. (MISO) | 11.0 MWh | Dec 2001 | Dec 2025 | Distillate Fuel Oil |
| Arbor Hill Wind Farm | MidAmerican Energy Co | Greenfield, IA | Midcontinent Independent System Operator, Inc. (MISO) | 1.1 TWh | Nov 2018 | May 2026 | Wind |
| Meadow Ridge | Meadow Ridge Wind Energy, LLC | Greenfield, IA | Midcontinent Independent System Operator, Inc. (MISO) | 2.3 GWh | Jun 2012 | Dec 2025 | Wind |
| Greenfield Wind | Greenfield Wind Power, LLC | Greenfield, IA | Midcontinent Independent System Operator, Inc. (MISO) | 4.4 GWh | Jul 2012 | Dec 2025 | Wind |
| Arbor Hill Solar | MidAmerican Energy Co | Greenfield, IA | Midcontinent Independent System Operator, Inc. (MISO) | 45.1 GWh | Dec 2021 | May 2026 | Solar |
| Venus Wind 3 LLC | Novis Renewables, LLC | Grinnell, IA | Midcontinent Independent System Operator, Inc. (MISO) | 9.5 GWh | Feb 2017 | Dec 2025 | Wind |
| Grinnell College | Azimuth 180 Solar Electric, LLC | Grinnell, IA | Midcontinent Independent System Operator, Inc. (MISO) | 1.6 GWh | Mar 2024 | Dec 2024 | Solar |
| Grundy Center City Light Plant | Grundy Center Mun Light & Power | Grundy Center, IA | Midcontinent Independent System Operator, Inc. (MISO) | 109.0 MWh | Oct 1963 | Dec 2025 | Distillate Fuel Oil |
| Franklin County Solar | MidAmerican Energy Co | Hampton, IA | Midcontinent Independent System Operator, Inc. (MISO) | 13.2 GWh | Dec 2021 | Dec 2025 | Solar |
| POET Biorefining-Hanlontown, LLC | POET Biorefining-Hanlontown, LLC | Hanlontown, IA | Midcontinent Independent System Operator, Inc. (MISO) | 13.4 GWh | Dec 2018 | Dec 2025 | Natural Gas |
| Harlan | Harlan Municipal Utilities - (IA) | Harlan, IA | Midcontinent Independent System Operator, Inc. (MISO) | 1.0 MWh | Jun 2001 | Dec 2025 | Distillate Fuel Oil |
| Osceola Windpower II | Osceola Windpower II | Harris, IA | Midcontinent Independent System Operator, Inc. (MISO) | 191.2 GWh | Aug 2008 | May 2026 | Wind |
| Osceola Windpower LLC | Osceola Windpower LLC | Harris, IA | Southwest Power Pool (SWPP) | 383.8 GWh | Jun 2008 | May 2026 | Wind |
| Hopkinton | City of Hopkinton - (IA) | Hopkinton, IA | Midcontinent Independent System Operator, Inc. (MISO) | 54.0 MWh | Aug 1973 | Dec 2025 | Distillate Fuel Oil |
| Michelangelo Wind 3 LLC | Michelangelo Wind 3 LLC | Huxley, IA | Midcontinent Independent System Operator, Inc. (MISO) | 9.9 GWh | Jan 2017 | Dec 2025 | Wind |
| Michelangelo Wind 1 LLC | Novis Renewables, LLC | Huxley, IA | Midcontinent Independent System Operator, Inc. (MISO) | 10.2 GWh | Feb 2017 | Dec 2025 | Wind |
| Ida Grove Wind | MidAmerican Energy Co | Ida Grove, IA | Midcontinent Independent System Operator, Inc. (MISO) | 1.1 TWh | Aug 2016 | Dec 2025 | Wind |
| Ida Grove II | MidAmerican Energy Co | Ida Grove, IA | Midcontinent Independent System Operator, Inc. (MISO) | 699.4 GWh | Nov 2019 | May 2026 | Wind |
| Johnson County Hills Solar | MidAmerican Energy Co | Iowa City, IA | Midcontinent Independent System Operator, Inc. (MISO) | 5.7 GWh | Dec 2021 | Dec 2025 | Solar |
| Franklin County Wind Farm | Interstate Power and Light Co | Iowa Falls, IA | Midcontinent Independent System Operator, Inc. (MISO) | 301.9 GWh | Nov 2012 | Dec 2025 | Wind |
| Whispering Willow Wind Farm - East | Interstate Power and Light Co | Iowa Falls, IA | Midcontinent Independent System Operator, Inc. (MISO) | 404.6 GWh | Nov 2009 | Dec 2025 | Wind |
| Hardin Hilltop Wind LLC | Junction Hilltop Management LLC | Jefferson, IA | Midcontinent Independent System Operator, Inc. (MISO) | 32.4 GWh | Apr 2007 | Dec 2024 | Wind |
| POET Biorefining - Jewell | POET Biorefining - Jewell | Jewell, IA | Midcontinent Independent System Operator, Inc. (MISO) | 11.2 GWh | Feb 2019 | Dec 2025 | Natural Gas |
| Sycamore (IA) | MidAmerican Energy Co | Johnston, IA | Midcontinent Independent System Operator, Inc. (MISO) | 30.5 GWh | Jul 1974 | Dec 2025 | Natural Gas |
| Old Gold Energy Center, LLC | Old Gold Energy Center, LLC | Joice, IA | Midcontinent Independent System Operator, Inc. (MISO) | 57.1 GWh | Sep 2001 | Dec 2025 | Wind |
| Farmers Electric Cooperative - Kalona | Farmers Electric Coop - (IA) | Kalona, IA | Midcontinent Independent System Operator, Inc. (MISO) | 174.0 MWh | Feb 2001 | Dec 2025 | Distillate Fuel Oil |
| Windwalkers LLC | RWE Clean Energy | Kensett, IA | Midcontinent Independent System Operator, Inc. (MISO) | 2.5 GWh | Aug 2011 | Dec 2025 | Wind |
| Top of Iowa Windfarm III | Madison Gas & Electric Co | Kensett, IA | Midcontinent Independent System Operator, Inc. (MISO) | 39.9 GWh | Jan 2008 | Dec 2025 | Wind |
| Northern Iowa Windpower II | Avangrid Power LLC | Kensett, IA | Midcontinent Independent System Operator, Inc. (MISO) | 134.3 GWh | Dec 2007 | Dec 2025 | Wind |
| Barton Windpower LLC | Avangrid Power LLC | Kensett, IA | Midcontinent Independent System Operator, Inc. (MISO) | 365.4 GWh | May 2009 | Dec 2025 | Wind |
| Roquette America | Roquette America | Keokuk, IA | Midcontinent Independent System Operator, Inc. (MISO) | 207.7 GWh | Jun 2004 | May 2026 | Natural Gas |
| Keokuk | Union Electric Co - (MO) | Keokuk, IA | Midcontinent Independent System Operator, Inc. (MISO) | 961.8 GWh | Jul 1913 | Dec 2025 | Water |
| Knoxville Industrial | MidAmerican Energy Co | Knoxville, IA | Midcontinent Independent System Operator, Inc. (MISO) | 225.0 MWh | Mar 2000 | Dec 2025 | Distillate Fuel Oil |
| La Porte | La Porte City Utilities | La Porte City, IA | Midcontinent Independent System Operator, Inc. (MISO) | 162.0 MWh | Nov 2000 | Dec 2025 | Distillate Fuel Oil |
| Diamond Trail Wind Farm | MidAmerican Energy Co | Ladora, IA | Midcontinent Independent System Operator, Inc. (MISO) | 854.7 GWh | Nov 2020 | May 2026 | Wind |
| Lake Mills Gas Recovery | WM Renewable Energy LLC | Lake Mills, IA | Midcontinent Independent System Operator, Inc. (MISO) | 31.7 GWh | Feb 2006 | Dec 2025 | Landfill Gas |
| Lake Mills | City of Lake Mills - (IA) | Lake Mills, IA | Midcontinent Independent System Operator, Inc. (MISO) | 99.0 MWh | Dec 1955 | Dec 2025 | Distillate Fuel Oil |
| Flying Cloud Power Partners LLC | Avangrid Power LLC | Lake Park, IA | Midcontinent Independent System Operator, Inc. (MISO) | 98.1 GWh | Nov 2003 | Dec 2025 | Wind |
| Lake Park | City of Lake Park - (IA) | Lake Park, IA | Midcontinent Independent System Operator, Inc. (MISO) | 16.0 MWh | Mar 2005 | Dec 2025 | Distillate Fuel Oil |
| Lost Lakes Wind Farm LLC | Lost Lakes Wind Farm LLC | Lake Park, IA | Midcontinent Independent System Operator, Inc. (MISO) | 270.1 GWh | Nov 2009 | Dec 2025 | Wind |
| Ledyard Windpower, LLC | Duke Energy Renewables Services | Lakota, IA | Midcontinent Independent System Operator, Inc. (MISO) | 602.6 GWh | Nov 2022 | May 2026 | Wind |
| Lakota Wind Wind Farm | Iowa Lakes Electric Coop | Lakota, IA | Southwest Power Pool (SWPP) | 33.5 GWh | Feb 2009 | Dec 2025 | Wind |
| Lamoni Municipal Utilities | City of Lamoni - (IA) | Lamoni, IA | Midcontinent Independent System Operator, Inc. (MISO) | 45.0 MWh | Feb 1940 | Dec 2025 | Distillate Fuel Oil |
| Whispering Willow North | Interstate Power and Light Co | Latimer, IA | Midcontinent Independent System Operator, Inc. (MISO) | 719.1 GWh | Dec 2019 | May 2026 | Wind |
| Laurel Wind Farm | MidAmerican Energy Co | Laurel, IA | Midcontinent Independent System Operator, Inc. (MISO) | 470.0 GWh | Nov 2011 | Dec 2025 | Wind |
| Laurens | City of Laurens - (IA) | Laurens, IA | Southwest Power Pool (SWPP) | 161.0 MWh | Jun 1951 | Dec 2025 | Distillate Fuel Oil |
| Lenox | City of Lenox - (IA) | Lenox, IA | Midcontinent Independent System Operator, Inc. (MISO) | 55.0 MWh | Aug 1948 | Dec 2025 | Distillate Fuel Oil |
| Adams Wind | MidAmerican Energy Co | Lenox, IA | Midcontinent Independent System Operator, Inc. (MISO) | 460.4 GWh | Sep 2015 | Dec 2025 | Wind |
| Saratoga Wind Farm | Madison Gas & Electric Co | Lime Springs, IA | Midcontinent Independent System Operator, Inc. (MISO) | 259.8 GWh | Jan 2019 | May 2026 | Wind |
| Buffalo Center Wind LLC | Buffalo Center Wind LLC | Little Cedar, IA | Midcontinent Independent System Operator, Inc. (MISO) | 4.0 GWh | Oct 2011 | Dec 2025 | Wind |
| Little Cedar | OneEnergy, Inc. | Little Cedar, IA | Midcontinent Independent System Operator, Inc. (MISO) | 65.0 MWh | Nov 2025 | Dec 2025 | Solar |
| Kossuth | Wisconsin Power & Light Co | Lu Verne, IA | Midcontinent Independent System Operator, Inc. (MISO) | 539.2 GWh | Sep 2020 | May 2026 | Wind |
| Kossuth County Wind | Kossuth County Wind, LLC | Lu Verne, IA | Midcontinent Independent System Operator, Inc. (MISO) | 277.7 GWh | Nov 2022 | May 2026 | Wind |
| Macksburg Wind Project | MidAmerican Energy Co | Macksburg, IA | Midcontinent Independent System Operator, Inc. (MISO) | 248.7 GWh | Nov 2014 | Dec 2025 | Wind |
| CED Manchester Wind | RWE Clean Energy | Manchester, IA | Midcontinent Independent System Operator, Inc. (MISO) | 28.5 GWh | Mar 2022 | Dec 2025 | Wind |
| Independence Wind Farm | Independence Wind Energy LLC | Manchester, IA | Midcontinent Independent System Operator, Inc. (MISO) | 204.7 GWh | Nov 2021 | May 2026 | Wind |
| Roeder Family Wind Farm LLC | RWE Clean Energy | Manly, IA | Midcontinent Independent System Operator, Inc. (MISO) | 4.9 GWh | Aug 2011 | Dec 2025 | Wind |
| Iowa Hydro LLC | Zero6 Energy Hydro | Maquoketa, IA | Midcontinent Independent System Operator, Inc. (MISO) | 6.1 GWh | Dec 1923 | May 2026 | Water |
| Alliant SBD 8602 Marion Sub | Industrial Energy Applications Inc | Marion, IA | Midcontinent Independent System Operator, Inc. (MISO) | 30.4 MWh | Jul 1986 | Dec 2025 | Distillate Fuel Oil |
| Marshalltown Generating Station | Interstate Power and Light Co | Marshalltown, IA | Midcontinent Independent System Operator, Inc. (MISO) | 3.1 TWh | Mar 2017 | May 2026 | Natural Gas : 99.9% |
| Marshalltown | Interstate Power and Light Co | Marshalltown, IA | Midcontinent Independent System Operator, Inc. (MISO) | 20.3 GWh | May 1978 | Dec 2025 | Natural Gas |
| Vienna Wind Farm | MidAmerican Energy Co | Marshalltown, IA | Midcontinent Independent System Operator, Inc. (MISO) | 621.7 GWh | Oct 2012 | Dec 2025 | Wind |
| Alliant SBD 9107 JBS USA | Industrial Energy Applications Inc | Marshalltown, IA | Midcontinent Independent System Operator, Inc. (MISO) | 61.7 MWh | Jul 1992 | May 2026 | Distillate Fuel Oil |
| CED Mason City Wind | RWE Clean Energy | Mason City, IA | Midcontinent Independent System Operator, Inc. (MISO) | 29.5 GWh | Apr 2020 | Dec 2025 | Wind |
| Lime Creek | Interstate Power and Light Co | Mason City, IA | Midcontinent Independent System Operator, Inc. (MISO) | 1.1 GWh | Apr 1991 | Dec 2025 | Distillate Fuel Oil |
| Rolling Hills Wind Farm | MidAmerican Energy Co | Massena, IA | Midcontinent Independent System Operator, Inc. (MISO) | 1.6 TWh | Nov 2011 | May 2026 | Wind |
| McGregor | City of McGregor- (IA) | McGregor, IA | Midcontinent Independent System Operator, Inc. (MISO) | 11.0 MWh | Nov 1941 | Dec 2025 | Distillate Fuel Oil |
| Pioneer Prairie Wind Farm | Pioneer Prairie Wind Farm I, LLC | McIntire, IA | Midcontinent Independent System Operator, Inc. (MISO) | 845.3 GWh | Sep 2008 | May 2026 | Wind |
| Heartland Divide Wind Project, LLC | Heartland Divide Wind Project, LLC | Melville, IA | Midcontinent Independent System Operator, Inc. (MISO) | 427.5 GWh | Nov 2018 | May 2026 | Wind |
| Amana Society Service Company | Amana Society Service Co | Middle Amana, IA | Midcontinent Independent System Operator, Inc. (MISO) | 1.4 GWh | Apr 2001 | Dec 2025 | Distillate Fuel Oil |
| Milford | City of Milford - (IA) | Milford, IA | Southwest Power Pool (SWPP) | 127.0 MWh | Dec 1948 | Dec 2025 | Distillate Fuel Oil |
| Metro Methane Recovery Facility | WM Renewable Energy LLC | Mitchellville, IA | Midcontinent Independent System Operator, Inc. (MISO) | 85.0 GWh | Dec 1997 | May 2026 | Landfill Gas |
| Prairie Wind Farm | MidAmerican Energy Co | Montezuma, IA | Midcontinent Independent System Operator, Inc. (MISO) | 611.0 GWh | Dec 2017 | May 2026 | Wind |
| English Farms | Interstate Power and Light Co | Montezuma, IA | Midcontinent Independent System Operator, Inc. (MISO) | 573.2 GWh | Feb 2019 | May 2026 | Wind |
| Montezuma | City of Montezuma - (IA) | Montezuma, IA | Midcontinent Independent System Operator, Inc. (MISO) | 115.0 MWh | Jul 1940 | Dec 2025 | Distillate Fuel Oil : 67.9% Natural Gas : 32.1% |
| North English | MidAmerican Energy Co | Montezuma, IA | Midcontinent Independent System Operator, Inc. (MISO) | 1.3 TWh | Nov 2018 | May 2026 | Wind |
| Mt Pleasant | City of Mt Pleasant - (IA) | Mt Pleasant, IA | Associated Electric Cooperative, Inc. (AECI) | 802.0 MWh | Jan 2002 | Dec 2025 | Distillate Fuel Oil |
| Louisa | MidAmerican Energy Co | Muscatine, IA | Midcontinent Independent System Operator, Inc. (MISO) | 4.4 TWh | Sep 1983 | May 2026 | Subbituminous Coal : 99.3% Natural Gas : 0.7% |
| Muscatine Plant #1 | Board of Water Electric & Communications | Muscatine, IA | Midcontinent Independent System Operator, Inc. (MISO) | 765.6 GWh | Mar 1958 | May 2026 | Subbituminous Coal : 99.7% |
| Optimum Wind 3 LLC | Novis Renewables, LLC | Nevada, IA | Midcontinent Independent System Operator, Inc. (MISO) | 7.4 GWh | Feb 2017 | Dec 2025 | Wind |
| Optimum Wind 5 LLC | Novis Renewables, LLC | Nevada, IA | Midcontinent Independent System Operator, Inc. (MISO) | 8.7 GWh | Feb 2017 | Dec 2025 | Wind |
| Optimum Wind 6 LLC | Novis Renewables, LLC | Nevada, IA | Midcontinent Independent System Operator, Inc. (MISO) | 9.5 GWh | Feb 2017 | Dec 2025 | Wind |
| Optimum Wind 7 LLC | Novis Renewables, LLC | Nevada, IA | Midcontinent Independent System Operator, Inc. (MISO) | 9.2 GWh | Feb 2017 | Dec 2025 | Wind |
| Optimum Wind 4 LLC | Novis Renewables, LLC | Nevada, IA | Midcontinent Independent System Operator, Inc. (MISO) | 8.2 GWh | Feb 2017 | Dec 2025 | Wind |
| New Hampton | City of New Hampton - (IA) | New Hampton, IA | Southwest Power Pool (SWPP) | 920.0 MWh | Mar 1967 | Dec 2025 | Distillate Fuel Oil : 61.4% Natural Gas : 38.6% |
| Chickasaw Wind Farm | MidAmerican Energy Co | New Hampton, IA | Midcontinent Independent System Operator, Inc. (MISO) | 634.0 GWh | Nov 2023 | May 2026 | Wind |
| NLMU Wind | New London Municipal Utilities - (IA) | New London, IA | Midcontinent Independent System Operator, Inc. (MISO) | 5.0 GWh | Oct 2011 | Dec 2025 | Wind |
| Richland (IA) | Interstate Power and Light Co | Odebolt, IA | Midcontinent Independent System Operator, Inc. (MISO) | 494.1 GWh | Aug 2020 | May 2026 | Wind |
| Beaver Creek Wind | MidAmerican Energy Co | Ogden, IA | Midcontinent Independent System Operator, Inc. (MISO) | 1.2 TWh | Nov 2017 | May 2026 | Wind |
| Ogden | City of Ogden - (IA) | Ogden, IA | Midcontinent Independent System Operator, Inc. (MISO) | 73.0 MWh | Jun 1951 | Dec 2025 | Distillate Fuel Oil |
| Orient Wind Farm | MidAmerican Energy Co | Orient, IA | Midcontinent Independent System Operator, Inc. (MISO) | 1.8 TWh | Nov 2018 | May 2026 | Wind |