CARROLL WIND FARM

Operating

Wind power plant

Capacity: 150 MW
Primary fuel: Wind
County: Carroll County
Operator: MIDAMERICAN ENERGY CO
Status: Operating
Commissioned: 2008
EIA plant ID: 56809
Generators: 1
Technology: Onshore Wind Turbine
Net generation (2024): 563 GWh
Capacity factor (2024, EIA nameplate): 40%
Data vintage: EIA-860 2024 final; EIA-923 2022-2024 final
Coordinates: 42.1131, -94.9003

CARROLL WIND FARM, a 150 MW Wind power plant in Carroll County, Iowa. Operated by MIDAMERICAN ENERGY CO, commissioned 2008.

How CARROLL WIND FARM compares

With 150 MW of capacity, CARROLL WIND FARM ranks 29th among the 198 operating power plants Bywatts maps in Iowa and 12th of the 63 operating Wind plants in the state. It accounts for about 2.9% of Iowa's operating Wind capacity and 1.0% of all operating capacity in the state. Nationally it is the 118th-largest of the 708 operating Wind plants in the database. Commissioned in 2008, it is newer than 70% of the 198 operating Iowa plants with a recorded commissioning year. Its operator, MIDAMERICAN ENERGY CO, runs 28 operating plants in Iowa totaling 8,028 MW. It shares Carroll County with 3 other operating plants, including VICTORY WIND FARM and MANNING.

EIA-860 lists 1 generator at the site with 159 MW of nameplate capacity, all onshore wind turbine technology. Net generation was 563 GWh in 2024 (a 40% capacity factor), down 9% from 2022.

Grid neighborhood

The closest transmission line found within 10 miles is a 161 kV line, about 0.1 miles away. Another 4 operating power plants totaling 114 MW sit within 25 miles; the largest is VICTORY WIND FARM (99 MW, Wind).

Computed by Bywatts from HIFLD power plant and transmission line records and EIA-860/923 survey data; distances are straight-line. Sources and methodology

Weather peril exposure

CARROLL WIND FARM is a 150 MW wind power plant in Carroll County, IA, operated by MIDAMERICAN ENERGY CO, commissioned in 2008. Carroll County carries moderate modeled catastrophe exposure in the FEMA National Risk Index, scoring 2.6 of 5 at the 39th national percentile. Tornado is the leading peril, rated Relatively Moderate by FEMA at the 98th percentile.

The Bywatts loss layer is calibrated to solar PV hardware, so it is not applied to a wind plant. The ratings below are the FEMA National Risk Index county hazard ratings for this location.

2.6 of 5Modeled catastrophe exposure

ModerateExposure band

TornadoLeading peril

Relatively LowFEMA county risk rating

Carroll County hazard ratings

Peril	FEMA rating	National percentile	Peril score	Events per year
Tornado	Relatively Moderate	98th	4.9 of 5	0.51
Heat wave	Very Low	92nd	4.7 of 5	5.7
Lightning	Very Low	84th	4.4 of 5	43.6
Strong wind	Relatively Moderate	76th	4.1 of 5	4.8
Ice storm	Relatively Moderate	76th	4.1 of 5	0.66
Winter weather	Relatively Low	68th	3.7 of 5	14.7
Hail	Relatively High	42nd	2.7 of 5	5.8
Wildfire	Very Low	28th	2.1 of 5	<0.01
Riverine flooding	Relatively Low	18th	1.7 of 5	1.8
Earthquake	Very Low	13th	1.5 of 5	<0.01
Hurricane	Very Low	3rd	1.1 of 5	<0.01

Perils not assessed in Carroll County

These perils carry no usable National Risk Index figure for this county, so they are excluded from the scoring rather than scored zero. A zero would claim the peril was assessed and found benign.

Peril	Why it is not scored
Coastal flooding	FEMA rating is "Not Applicable" for this county

Model hail, wind and flood exposure for Carroll County in the weather risk calculator

Ratings are the FEMA National Risk Index county hazard ratings; the peril score is a Bywatts transform of the FEMA national percentile. Full data sources and the solar vulnerability methodology are in the weather risk calculator.

Modeled estimate for screening and negotiation. Built from FEMA National Risk Index county hazard data and a solar vulnerability layer documented above. Not a quote, a binder, or actuarial advice, and not a substitute for a carrier's own model. Hazard data: FEMA National Risk Index December 2025, synced 2026-07-24. Resolution is county level, not site level.