Ottumwa
20775 Power Plant Road, Ottumwa, IA 52501Plant Summary Information
Ottumwa is ranked #48 out of 126 coal plants nationwide in terms of total annual net electricity generation.
Ottumwa is comprised of 1 generator and generated 1.1 TWh during the 3-month period between July 2025 to October 2025.
| Plant Name | Ottumwa |
|---|---|
| Utility Name | Interstate Power and Light Co |
| Location | Wapello County, IA |
| Initial Operation Date | May 1981 |
| Last Update | Oct 2025 |
| Annual Generation | 2.8 TWh |
| Annual Consumption | 34.4 M MMBtu |
| Ranked #407 out of 12,553 Power Plants Nationwide | |
| Ranked #48 out of 126 Subbituminous Coal Power Plants Nationwide | |
| Ranked #4 out of 279 Iowa Power Plants | |
| Ranked #3 out of 9 Iowa Subbituminous Coal Power Plants | |
| Fuel Types | Subbituminous Coal : 99.7% |
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Monthly Net Generation for Ottumwa
Ottumwa Details
| Summary Information | |
|---|---|
| Plant Name | Ottumwa (6254) |
| Plant Address | 20775 Power Plant Road, Ottumwa, IA 52501 |
| Utility | Interstate Power and Light Co (9417) |
| Latitude, Longitude | 41.0961, -92.55583 |
| Generation Dates on File | Jan 2001 to Oct 2025 |
| Initial Operation Date | May 1981 |
| Annual Generation | 2.8 TWh |
| Fuel Types | Subbituminous Coal : 99.7% |
| Federal Energy Regulatory Commission (FERC) Information | |
| FERC Cogeneration Status | No |
| FERC Small Power Producer Status | No |
| FERC Exempt Wholesale Generator Status | No |
| Regulatory Information | |
|---|---|
| Regulatory Status | Regulated |
| NERC Region | MRO |
| Balancing Authority | Midcontinent Independent Transmission System Operator, Inc.. (MISO) |
| NAICS Code | Utilities (22) |
| Sector | Electric Utility (1) |
| Water Source | Des Moines River |
| Ash Impoundment | Yes Not Lined Out of Service |
| Transmission / Distribution Owner | ITC Midwest LLC (56161) |
| Grid Voltage | 161.00 kV |
| Energy Storage | No |
Generator 1 Details Operating May 1981
| Technology | Conventional Steam Coal |
|---|---|
| Prime Mover | Steam Turbine |
| Ownership | Jointly Owned |
| RTO ISO LMP Node Designation | ALTW.OTTUMW1 |
| RTO ISO Location Designation For Reporting Wholesale Sales Data | ALTW.OTTUMW1 |
| Nameplate Capacity | 725.9 MW |
| Nameplate Power Factor | 0.9 |
| Summer Capacity | 699.7 MW |
| Winter Capacity | 716.3 MW |
| Minimum Load | 190 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
| First Operation Date | May 1981 |
| Combined Heat & Power | No |
|---|---|
| Sector Name | Electric Utility (1) |
| Energy Source | Subbituminous Coal |
| Startup Source | Distillate Fuel Oil |
| Solid Fuel Gasification | No |
| Carbon Capture Technology | No |
| Time From Cold Shutdown To Full Load | OVER |
| Pulverized Coal Technology | Yes |
| Subcritical Technology | Yes |
| Other Planned Modifications | No |
| Multiple Fuels | No |
| Cofire Fuels | No |
Ottumwa Plant Owners
| Owner Name | Address | Ownership |
|---|---|---|
| Interstate Power and Light Co | 200 First Street SE, Cedar Rapids, IA 52401 | 48.00% |
| MidAmerican Energy Co | 4299 NW Urbandale Drive, Urbandale, IA 50322 | 52.00% |
Power Plants with Similar Net Generation
Power plants with a similar annual net generation from Subbituminous Coal.
| Rank | Plant Name | Plant Location | Annual Generation |
|---|---|---|---|
| #38 | Welsh | Pittsburg, TX | 4.1 TWh |
| #39 | Craig (CO) | Craig, CO | 3.9 TWh |
| #40 | Newton | Newton, IL | 3.7 TWh |
| #41 | Transalta Centralia Generation | Centralia, WA | 3.3 TWh |
| #42 | White Bluff | Redfield, AR | 3.2 TWh |
| #43 | Sandy Creek Energy Station | Riesel, TX | 3.2 TWh |
| #44 | Powerton | Pekin, IL | 3.1 TWh |
| #45 | Sioux | West Alton, MO | 4.2 TWh |
| #46 | Coleto Creek | Fannin, TX | 3.0 TWh |
| #47 | Flint Creek | Gentry, AR | 2.9 TWh |
| #49 | Sooner | Red Rock, OK | 2.8 TWh |
| #50 | Kincaid Generation LLC | Kincaid, IL | 2.7 TWh |
| #51 | John W Turk Jr Power Plant | Fulton, AR | 2.7 TWh |
| #52 | Coronado | St Johns, AZ | 2.5 TWh |
| #53 | Tolk | Muleshoe, TX | 2.6 TWh |
| #54 | Kingston | Kingston, TN | 3.4 TWh |
| #55 | Hawthorn | Kansas City, MO | 2.8 TWh |
| #56 | Dry Fork Station | Gillette, WY | 2.2 TWh |
| #57 | South Oak Creek | Oak Creek, WI | 2.2 TWh |
| #58 | Wyodak | Gillette, WY | 2.0 TWh |
Nearby Power Plants
Below are closest 20 power plants surrounding Ottumwa.
| Plant Name | Plant Location | Annual Generation | Distance |
|---|---|---|---|
| Bloomfield | Bloomfield, IA | 16.0 MWh | 28 mi |
| Bloomfield Municipal Utilities Solar | Bloomfield, IA | 2.0 GWh | 24.5 mi |
| Brooklyn | Brooklyn, IA | 18.0 MWh | 44 mi |
| Brooklyn City North Plant | Brooklyn, IA | 14.0 MWh | 44.9 mi |
| Cargill Corn Milling Division | Eddyville, IA | 110.5 GWh | 5.6 mi |
| CED Centerville Wind | Centerville, IA | 26.6 GWh | 30.7 mi |
| Diamond Trail Wind Farm | Ladora, IA | 840.6 GWh | 44.8 mi |
| English Farms | Montezuma, IA | 566.4 GWh | 33.6 mi |
| Grinnell College | Grinnell, IA | 1.6 GWh | 46.7 mi |
| High Prairie Wind Farm | Queen City, MO | 262.0 GWh | 48.3 mi |
| Hy-Vee Customer Hosted 2.25MW Solar | Chariton, IA | 1.5 GWh | 40.6 mi |
| Knoxville Industrial | Knoxville, IA | 39.0 MWh | 30.3 mi |
| Montezuma | Montezuma, IA | 119.0 MWh | 33.9 mi |
| North English | Montezuma, IA | 1.3 TWh | 37.9 mi |
| Ottumwa City of | Ottumwa, IA | 4.5 GWh | 9.2 mi |
| Pella Peaking | Pella, IA | 227.0 MWh | 29.4 mi |
| Prairie Wind Farm | Montezuma, IA | 586.6 GWh | 24.8 mi |
| Red Rock Hydro Plant | Pella, IA | 170.3 GWh | 29.1 mi |
| Unionville City of | Unionville, MO | 1.0 MWh | 48.9 mi |
| Venus Wind 3 LLC | Grinnell, IA | 10.3 GWh | 45 mi |