Vienna Wind Farm

1805 East Anson St., Marshalltown, IA 50158

Plant Summary Information

Vienna Wind Farm is ranked #38 out of 283 power plants in Iowa in terms of total annual net electricity generation.

Vienna Wind Farm generated 185.6 GWh during the 3-month period between September 2025 to December 2025.

Plant Name	Vienna Wind Farm
Utility Name	MidAmerican Energy Co
Location	Marshall County, IA
Initial Operation Date	November 2012
Last Update	Dec 2025
Annual Generation	621.7 GWh
Annual Consumption	2.3 M MMBtu
Ranked #1,115 out of 13,081 Power Plants Nationwide
Ranked #256 out of 1,366 Wind Power Plants Nationwide
Ranked #38 out of 283 Iowa Power Plants
Ranked #26 out of 123 Iowa Wind Power Plants
Fuel Types	Wind

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Summary Information
Plant Name	Vienna Wind Farm (57874)
Plant Address	1805 East Anson St., Marshalltown, IA 50158
Utility	MidAmerican Energy Co (12341)
Latitude, Longitude	42.15944, -92.77611
Generation Dates on File	Dec 2012 to Dec 2025
Initial Operation Date	November 2012
Annual Generation	621.7 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	No
Transmission / Distribution Owner	ITC Midwest LLC (56161)
Grid Voltage	161.00 kV
Energy Storage	No

* Data obtained from the 2025 EIA 860 Report

First Operation Date	November 2012
Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Wind
Solid Fuel Gasification	No
Carbon Capture Technology	No
Turbines/Hydrokinetic Buoys	45
Multiple Fuels	No

Turbine Details
Number Of Turbines	45
Predominant Turbine Manufacturer	Siemens
Predominant Turbine Model Number	SWT-2.3-108
Design Wind Speed	16.8 MPH
Wind Quality Class	3 - Low Wind
Turbine Hub Height Feet	262.4

Technology	Onshore Wind Turbine
Prime Mover	Wind Turbine, Onshore
Ownership	Single Owner
RTO ISO LMP Node Designation	MEC.VIENNA1
RTO ISO Location Designation For Reporting Wholesale Sales Data	MEC.VIENNA1
Nameplate Capacity	44.6 MW
Summer Capacity	44.6 MW
Winter Capacity	44.6 MW
Minimum Load	0.1 MW

Uprate/Derate Completed	No
Status	Operating
First Operation Date	December 2013
Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Wind
Carbon Capture Technology	No
Turbines/Hydrokinetic Buoys	19
Multiple Fuels	No

Turbine Details
Number Of Turbines	19
Predominant Turbine Manufacturer	Siemens
Predominant Turbine Model Number	SWT-2.3-108
Design Wind Speed	16.8 MPH
Wind Quality Class	3 - Low Wind
Turbine Hub Height Feet	262.4

Owner Name	Address	Generator	Ownership
*We couldn't locate any owners for this plant*

Power plants with a similar annual net generation from Wind.

Rank	Plant Name	Plant Location	Annual Generation
#246	Patriot Wind Farm	Bishop, TX	634.7 GWh
#247	Chickasaw Wind Farm	New Hampton, IA	634.0 GWh
#248	Heart of Texas Wind Project	Brady, TX	632.9 GWh
#249	Glacier Sands Wind Power, LLC	Mason City, IL	629.2 GWh
#250	King Mountain Wind Ranch 1	McCamey, TX	628.9 GWh
#251	Horseshoe Bend Wind LLC	Arlington, OR	626.8 GWh
#252	Montgomery Ranch Wind Farm, LLC	Crowell, TX	626.1 GWh
#253	Mammoth Plains	Oakwood, OK	623.0 GWh
#254	Minonk Wind Farm	Minonk, IL	622.9 GWh
#255	Sweetwater Wind 4 LLC	Roscoe, TX	622.7 GWh
#257	Kelly Creek Wind Project	Cabery, IL	620.6 GWh
#258	Brady II Wind Energy Center	Dickinson, ND	617.2 GWh
#259	Castle Gap Wind	Goldthwaite, TX	616.5 GWh
#260	FPL Energy Illinois Wind LLC Hybrid	Shabbona, IL	611.9 GWh
#261	Bloom Wind	Minneola, KS	612.7 GWh
#262	Marengo Wind Plant	Dayton, WA	612.6 GWh
#263	Maple Ridge Wind Farm	Lowville, NY	612.3 GWh
#264	South Hurlburt Wind LLC	Arlington, OR	612.0 GWh
#265	Pioneer Hutt Wind Energy	Midland, TX	611.3 GWh
#266	Prairie Wind Farm	Montezuma, IA	611.0 GWh

Below are closest 20 power plants surrounding Vienna Wind Farm.

Plant Name	Plant Location	Annual Generation	Distance
Alliant SBD 9107 JBS USA	Marshalltown, IA	61.7 MWh	9.5 mi
Cedar Falls Solar Farm	Cedar Falls, IA	2.4 GWh	27.5 mi
Dike City Power Plant	Dike, IA	4.0 MWh	22.3 mi
Electrifarm	Waterloo, IA	16.7 GWh	26.6 mi
FPL Energy Story Wind LLC	Zearing, IA	571.3 GWh	25.7 mi
Gas Turbine (IA)	Cedar Falls, IA	1.1 GWh	28.8 mi
Grinnell College	Grinnell, IA	1.6 GWh	27.7 mi
Grundy Center City Light Plant	Grundy Center, IA	109.0 MWh	14.1 mi
Ivester Wind Farm	Wellsburg, IA	323.0 GWh	14.8 mi
Laurel Wind Farm	Laurel, IA	470.0 GWh	20.7 mi
Marshalltown	Marshalltown, IA	20.3 GWh	8.8 mi
Marshalltown Generating Station	Marshalltown, IA	3.1 TWh	9.4 mi
Salt Creek Wind	Traer, IA	360.0 GWh	13.6 mi
State Center	State Center, IA	153.0 MWh	22.2 mi
Traer East	Tracer, IA	6.0 MWh	15.9 mi
Traer Main	Traer, IA	65.0 MWh	16.2 mi
Traer South	Traer, IA	12.0 MWh	15.6 mi
Traer Wind Project	Traer, IA	5.6 GWh	17.1 mi
Venus Wind 3 LLC	Grinnell, IA	9.5 GWh	29.3 mi
Wellsburg Wind Project	Wellsburg, IA	304.8 GWh	18.7 mi