CENTURY

Operating

Wind power plant

Capacity: 200 MW
Primary fuel: Wind
County: Hamilton County
Operator: MIDAMERICAN ENERGY CO
Status: Operating
Commissioned: 2005
EIA plant ID: 56252
Generators: 3
Technology: Onshore Wind Turbine
Net generation (2024): 572 GWh
Capacity factor (2024, EIA nameplate): 32%
Data vintage: EIA-860 2024 final; EIA-923 2022-2024 final
Coordinates: 42.5633, -93.6345

CENTURY, a 200 MW Wind power plant in Hamilton County, Iowa. Operated by MIDAMERICAN ENERGY CO, commissioned 2005.

How CENTURY compares

With 200 MW of capacity, CENTURY ranks 16th among the 198 operating power plants Bywatts maps in Iowa and 4th of the 63 operating Wind plants in the state. It accounts for about 3.9% of Iowa's operating Wind capacity and 1.3% of all operating capacity in the state. Nationally it is the 58th-largest of the 708 operating Wind plants in the database. Commissioned in 2005, it is newer than 65% 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 Hamilton County with one other operating plant, WEBSTER CITY.

EIA-860 lists 3 generators at the site with 201 MW of nameplate capacity, all onshore wind turbine technology. Net generation was 572 GWh in 2024 (a 32% capacity factor), down 17% from 2022. Its generators came online between 2005 and 2007.

Grid neighborhood

The closest transmission line found within 10 miles is a 161 kV line, under 0.1 miles away. Another 4 operating power plants totaling 326 MW sit within 25 miles; the largest is WHISPERING WILLOW WIND FARM - EAST (200 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

CENTURY is a 200 MW wind power plant in Hamilton County, IA, operated by MIDAMERICAN ENERGY CO, commissioned in 2005. Hamilton County carries elevated modeled catastrophe exposure in the FEMA National Risk Index, scoring 3.0 of 5 at the 50th national percentile. Tornado is the leading peril, rated Relatively Low 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.

3.0 of 5Modeled catastrophe exposure

ElevatedExposure band

TornadoLeading peril

Relatively LowFEMA county risk rating

Hamilton County hazard ratings

Peril	FEMA rating	National percentile	Peril score	Events per year
Tornado	Relatively Low	98th	4.9 of 5	0.58
Heat wave	Very Low	95th	4.8 of 5	4.2
Strong wind	Relatively Moderate	76th	4.0 of 5	5.4
Winter weather	Relatively Moderate	73rd	3.9 of 5	16.6
Riverine flooding	Relatively Low	58th	3.3 of 5	2.2
Ice storm	Relatively Low	57th	3.3 of 5	0.65
Hail	Relatively Low	54th	3.2 of 5	5.7
Lightning	Very Low	47th	2.9 of 5	42.4
Wildfire	Very Low	18th	1.7 of 5	<0.01
Earthquake	Very Low	14th	1.6 of 5	<0.01
Hurricane	Very Low	7th	1.3 of 5	<0.01

Perils not assessed in Hamilton 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 Hamilton 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.