Ottumwa City of
323 South Market Street, Ottumwa, IA 52501Plant Summary Information
Ottumwa City of is ranked #4 out of 4 hydroelectric power plants in Iowa in terms of total annual net electricity generation.
Ottumwa City of is comprised of 3 generators and generated 2.2 GWh during the 3-month period between September 2025 to December 2025.
| Plant Name | Ottumwa City of |
|---|---|
| Utility Name | City of Ottumwa - (IA) |
| Location | Wapello County, IA |
| Initial Operation Date | August 1931 |
| Last Update | Dec 2025 |
| Annual Generation | 2.9 GWh |
| Annual Consumption | 9.7 k MMBtu |
| Ranked #10,006 out of 13,081 Power Plants Nationwide | |
| Ranked #1,196 out of 1,311 Water Power Plants Nationwide | |
| Ranked #174 out of 283 Iowa Power Plants | |
| Ranked #4 out of 4 Iowa Water Power Plants | |
| Fuel Types | Water |
| Previous Operator |
Ottumwa City of (2013 to 2024) City of Ottumwa - (IA) (2025 to 2025) |
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Monthly Net Generation for Ottumwa City of
Monthly Plant Fuel Consumption for Ottumwa City of
Ottumwa City of Details
| Summary Information | |
|---|---|
| Plant Name | Ottumwa City of (1173) |
| Plant Address | 323 South Market Street, Ottumwa, IA 52501 |
| Utility | City of Ottumwa - (IA) (14236) |
| Latitude, Longitude | 41.01635, -92.41487 |
| Generation Dates on File | Jan 2002 to Dec 2025 |
| Initial Operation Date | August 1931 |
| Annual Generation | 2.9 GWh |
| Fuel Types | Water |
| 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 | No |
| Transmission / Distribution Owner | Interstate Power and Light Co (9417) IA |
| Grid Voltage | 13.20 kV |
| Energy Storage | No |
Generator 1 Details Out of Service August 1931
| Technology | Conventional Hydroelectric |
|---|---|
| Prime Mover | Hydroelectric Turbine |
| Ownership | Single Owner |
| Nameplate Capacity | 1 MW |
| Nameplate Power Factor | 0.8 |
| Summer Capacity | 1 MW |
| Winter Capacity | 1 MW |
| Minimum Load | 0.5 MW |
| Uprate/Derate Completed | No |
|---|---|
| Status | Out of Service |
| First Operation Date | August 1931 |
| Combined Heat & Power | No |
| Sector Name | Electric Utility (1) |
| Energy Source | Water |
| Solid Fuel Gasification | No |
| Time From Cold Shutdown To Full Load | 1H |
Generator 2 Details Operating August 1931
| Technology | Conventional Hydroelectric |
|---|---|
| Prime Mover | Hydroelectric Turbine |
| Ownership | Single Owner |
| Nameplate Capacity | 1.2 MW |
| Nameplate Power Factor | 0.8 |
| Summer Capacity | 1.2 MW |
| Winter Capacity | 1.2 MW |
| Minimum Load | 0.3 MW |
| Uprate/Derate Completed | No |
|---|---|
| Status | Operating |
| First Operation Date | August 1931 |
| Combined Heat & Power | No |
| Sector Name | Electric Utility (1) |
| Energy Source | Water |
| Solid Fuel Gasification | No |
| Time From Cold Shutdown To Full Load | 1H |
Generator 3 Details Operating August 1931
| Technology | Conventional Hydroelectric |
|---|---|
| Prime Mover | Hydroelectric Turbine |
| Ownership | Single Owner |
| Nameplate Capacity | 1 MW |
| Nameplate Power Factor | 0.8 |
| Summer Capacity | 1 MW |
| Winter Capacity | 1 MW |
| Minimum Load | 0.3 MW |
| Uprate/Derate Completed | No |
|---|---|
| Status | Operating |
| First Operation Date | August 1931 |
| Combined Heat & Power | No |
| Sector Name | Electric Utility (1) |
| Energy Source | Water |
| Solid Fuel Gasification | No |
| Time From Cold Shutdown To Full Load | 1H |
Ottumwa City of Plant Owners
| Owner Name | Address | Generator | Ownership | We couldn't locate any owners for this plant |
|---|
Power Plants with Similar Net Generation
Power plants with a similar annual net generation from Water.
| Rank | Plant Name | Plant Location | Annual Generation |
|---|---|---|---|
| #1186 | High Shoals Hydro (NC) | High Shoals, NC | 3.0 GWh |
| #1187 | Flambeau Lower Project | Park Falls, WI | 3.0 GWh |
| #1188 | Newhalen | Iliamna, AK | 3.2 GWh |
| #1189 | Narrows (AR) | Murfreesboro, AR | 3.0 GWh |
| #1190 | Rollinsford | Rollinsford, NH | 3.0 GWh |
| #1191 | Cabot Holyoke | Holyoke, MA | 3.0 GWh |
| #1192 | Orchard Avenue 1 | Yakima, WA | 2.9 GWh |
| #1193 | Tallassee Hydro Project | Clarke, GA | 2.9 GWh |
| #1194 | Pumpkin Hill | Lowell, ME | 2.9 GWh |
| #1195 | Wallowa Falls | Joseph, OR | 2.9 GWh |
| #1197 | Redwood Falls | Redwood Falls, MN | 3.4 GWh |
| #1198 | Cornell Hydro | Ithaca, NY | 2.8 GWh |
| #1199 | East Highline | Holtville, CA | 2.8 GWh |
| #1200 | Ottauquechee Hydro | N. Hartland, VT | 2.8 GWh |
| #1201 | Alverno Hydro Plant | Cheboygan, MI | 2.8 GWh |
| #1202 | Thief River Falls | Thief River Falls, MN | 2.8 GWh |
| #1203 | White River (WI) | Ashland, WI | 2.7 GWh |
| #1204 | Victory Mills | Victory Mills, NY | 2.7 GWh |
| #1205 | Bear Valley | Escondido, CA | 2.7 GWh |
| #1206 | Franklin (NC) | Franklin, NC | 2.7 GWh |
Nearby Power Plants
Below are closest 20 power plants surrounding Ottumwa City of.
| Plant Name | Plant Location | Annual Generation | Distance |
|---|---|---|---|
| Bloomfield Municipal Utilities Solar | Bloomfield, IA | 2.0 GWh | 18.5 mi |
| Brooklyn | Brooklyn, IA | 14.0 MWh | 49.2 mi |
| Brooklyn City North Plant | Brooklyn, IA | 7.0 MWh | 50 mi |
| Cargill Corn Milling Division | Eddyville, IA | 112.1 GWh | 14.7 mi |
| CED Centerville Wind | Centerville, IA | 26.0 GWh | 31 mi |
| Diamond Trail Wind Farm | Ladora, IA | 854.7 GWh | 47.3 mi |
| English Farms | Montezuma, IA | 573.2 GWh | 38.3 mi |
| Farmers Electric Cooperative - Kalona | Kalona, IA | 174.0 MWh | 51.8 mi |
| High Prairie Wind Farm | Queen City, MO | 824.3 GWh | 43.1 mi |
| Hy-Vee Customer Hosted 2.25MW Solar | Chariton, IA | 4.3 GWh | 47.8 mi |
| Knoxville Industrial | Knoxville, IA | 225.0 MWh | 39.5 mi |
| Montezuma | Montezuma, IA | 115.0 MWh | 39.8 mi |
| Mt Pleasant | Mt Pleasant, IA | 802.0 MWh | 45.1 mi |
| North English | Montezuma, IA | 1.3 TWh | 43.5 mi |
| Ottumwa | Ottumwa, IA | 3.5 TWh | 9.2 mi |
| Pella Peaking | Pella, IA | 752.0 MWh | 38.5 mi |
| Prairie Wind Farm | Montezuma, IA | 611.0 GWh | 32.7 mi |
| Red Rock Hydro Plant | Pella, IA | 213.0 GWh | 38.2 mi |
| Unionville | Unionville, MO | 34.0 MWh | 49.9 mi |
| Unionville City of | Unionville, MO | 1.0 MWh | 48.6 mi |