Whispering Willow Wind Farm - East
1598 70th Street, Iowa Falls, IA 50126Plant Summary Information
Whispering Willow Wind Farm - East is ranked #44 out of 123 wind farms in Iowa in terms of total annual net electricity generation.
Whispering Willow Wind Farm - East generated 132.3 GWh during the 3-month period between September 2025 to December 2025.
| Plant Name | Whispering Willow Wind Farm - East |
|---|---|
| Utility Name | Interstate Power and Light Co |
| Location | Franklin County, IA |
| Initial Operation Date | December 2009 |
| Last Update | Dec 2025 |
| Annual Generation | 404.6 GWh |
| Annual Consumption | 1.5 M MMBtu |
| Ranked #1,620 out of 13,094 Power Plants Nationwide | |
| Ranked #464 out of 1,369 Wind Power Plants Nationwide | |
| Ranked #56 out of 283 Iowa Power Plants | |
| Ranked #44 out of 123 Iowa Wind Power Plants | |
| Fuel Types | Wind |
Map of Whispering Willow Wind Farm - East
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Monthly Net Generation for Whispering Willow Wind Farm - East
Monthly Plant Fuel Consumption for Whispering Willow Wind Farm - East
Whispering Willow Wind Farm - East Details
| Summary Information | |
|---|---|
| Plant Name | Whispering Willow Wind Farm - East (56355) |
| Plant Address | 1598 70th Street, Iowa Falls, IA 50126 |
| Utility | Interstate Power and Light Co (9417) |
| Latitude, Longitude | 42.63051, -93.20639 |
| Generation Dates on File | Oct 2009 to Dec 2025 |
| Initial Operation Date | December 2009 |
| Annual Generation | 404.6 GWh |
| Fuel Types | Wind |
| 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 | |
| Ash Impoundment | |
| Transmission / Distribution Owner | ITC Midwest LLC (56161) |
| Grid Voltage | 161.00 kV |
| Energy Storage | No |
Generator 1 Details Operating December 2009
| Technology | Onshore Wind Turbine |
|---|---|
| Prime Mover | Wind Turbine, Onshore |
| Ownership | Single Owner |
| RTO ISO LMP Node Designation | ALTW.WHISPERWI |
| RTO ISO Location Designation For Reporting Wholesale Sales Data | ALTW.WHISPERWI |
| Nameplate Capacity | 199.7 MW |
| Summer Capacity | 199.7 MW |
| Winter Capacity | 199.7 MW |
| Minimum Load | 0.4 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
|---|---|
| First Operation Date | December 2009 |
| Combined Heat & Power | No |
| Sector Name | Electric Utility (1) |
| Energy Source | Wind |
| Solid Fuel Gasification | No |
| Turbines/Hydrokinetic Buoys | 121 |
| Time From Cold Shutdown To Full Load | 10M |
| Other Planned Modifications | No |
| Turbine Details | |
| Number Of Turbines | 121 |
|---|---|
| Predominant Turbine Manufacturer | Vestas |
| Predominant Turbine Model Number | V82-1.65 |
| Design Wind Speed | 17 MPH |
| Wind Quality Class | 2 - Medium Wind |
| Turbine Hub Height Feet | 262 |
Whispering Willow Wind Farm - East Plant Owners
| Owner Name | Address | 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 Wind.
| Rank | Plant Name | Plant Location | Annual Generation |
|---|---|---|---|
| #454 | Skookumchuck Wind Facility | Rainier, WA | 420.8 GWh |
| #455 | Briscoe Wind Farm | Silverton, TX | 420.8 GWh |
| #456 | Crossover Wind | Wynne, AR | 420.1 GWh |
| #457 | Dunlap | Medicine Bow, WY | 416.7 GWh |
| #458 | Judith Gap Wind Energy Center | Harlowton, MT | 415.3 GWh |
| #459 | Redbed Plains Wind Farm | Tuttle, OK | 415.0 GWh |
| #460 | Panther Creek Wind Farm II | Big Spring, TX | 411.3 GWh |
| #461 | Goldthwaite Wind Energy Facility | Goldthwaite, TX | 408.6 GWh |
| #462 | Morning Light Wind Farm | Adair, IA | 406.8 GWh |
| #463 | Camp Grove Wind Farm | Wyoming, IL | 406.1 GWh |
| #465 | Salt Creek Wind | Traer, IA | 403.4 GWh |
| #466 | Roundhouse Renewable Energy II | Granite, WY | 402.2 GWh |
| #467 | Ocotillo Express LLC | Ocotillo, CA | 402.1 GWh |
| #468 | Timber Road IV | Payne, OH | 401.9 GWh |
| #469 | Lakefield Wind Project LLC | Lakefield, MN | 401.8 GWh |
| #470 | Rattlesnake Flat | Ritzville, WA | 401.6 GWh |
| #471 | Ensign Wind LLC | Montezuma, KS | 400.0 GWh |
| #472 | Shiloh I Wind Project | Rio Vista, CA | 400.0 GWh |
| #473 | White Oak Energy LLC | Carlock, IL | 399.9 GWh |
| #474 | Alta Wind Energy Center I | Mojave, CA | 399.8 GWh |
Nearby Power Plants
Below are closest 20 power plants surrounding Whispering Willow Wind Farm - East.
| Plant Name | Plant Location | Annual Generation | Distance |
|---|---|---|---|
| CED Mason City Wind | Mason City, IA | 29.5 GWh | 35.7 mi |
| Century | Blairsburg, IA | 608.9 GWh | 22.4 mi |
| Cerro Gordo Wind Farm | Union, IA | 170.4 GWh | 32.3 mi |
| Dike City Power Plant | Dike, IA | 4.0 MWh | 31.7 mi |
| Emery Station | Clear Lake, IA | 2.4 TWh | 32.3 mi |
| FPL Energy Story Wind LLC | Zearing, IA | 570.8 GWh | 36.5 mi |
| Franklin County Solar | Hampton, IA | 13.2 GWh | 6.2 mi |
| Franklin County Wind Farm | Iowa Falls, IA | 301.9 GWh | 6.8 mi |
| Garden Wind LLC | Zearing, IA | 328.3 GWh | 29.3 mi |
| Grundy Center City Light Plant | Grundy Center, IA | 109.0 MWh | 28.8 mi |
| Hancock County Wind Energy Center | Garner, IA | 248.1 GWh | 36.2 mi |
| Hawkeye Power Partners LLC | Garner, IA | 167.8 GWh | 31.9 mi |
| Ivester Wind Farm | Wellsburg, IA | 324.8 GWh | 24.4 mi |
| Leonardo Wind 1 LLC | Alden, IA | 8.7 GWh | 12.3 mi |
| POET Biorefining - Jewell | Jewell, IA | 11.2 GWh | 31.2 mi |
| Rockford | Rockford, IA | 6.0 MWh | 31.8 mi |
| Story City Wind Project | Story City, IA | 5.2 GWh | 35.4 mi |
| Webster City | Webster City, IA | 383.2 MWh | 32.9 mi |
| Wellsburg Wind Project | Wellsburg, IA | 304.8 GWh | 20.6 mi |
| Whispering Willow North | Latimer, IA | 721.4 GWh | 14.7 mi |