Adair Wind Farm — Plant Summary
- EIA Plant ID
- 56810
- Capacity
- 174.8 MW
- Primary Fuel
- Wind
- Technology
- Onshore Wind Turbine
- Status
- Operating
- Location
- Adair, IA
- Operating Since
- 2008
- Generators
- 1
- Operator
- MidAmerican Energy Co
- Parent Company
- Berkshire Hathaway
- Annual Generation
- 554,807 MWh
- Capacity Factor
- 36.2%
- Balancing Authority
- Midcontinent Independent Transmission System Operator, Inc..
- ISO/RTO
- MISO
- NERC Region
- MRO
Adair Wind Farm
OperatingWind
Ranked #32 of 122 Wind plants in IA#418 of 1442 nationally
174.8 MW Wind operating in Adair, IA — Midcontinent Independent Transmission System Operator, Inc..
EIAGEMWD
174.8 MW
Nameplate Capacity
1
Generators
unit
Onshore Wind Turbine
Technology
2008
Operating Since
Location
Coordinates
41.4598, -94.6675
County
Adair, IA
Nearby Plants
- Morning Light Wind FarmWind110.9 MW · 7.7 km
- AnitaDistillate Oil2.9 MW · 8.4 km
- Eclipse Wind FarmWind207.1 MW · 10.7 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | MidAmerican Energy Co | MidAmerican Energy Co [100%] | — |
| Owner(s) | MidAmerican Energy Co | Berkshire Hathaway | — |
| Status | Operating | operating | — |
Ownership Chain
About
The Adair Wind Farm is a 174.8 MW wind power facility located in Adair County, Iowa. The plant began operating in 2008 and is owned by Berkshire Hathaway and operated by MidAmerican Energy Co. It consists of a single generator utilizing onshore wind turbine technology. The facility is interconnected to the Midcontinent Independent Transmission System Operator, Inc. (MISO) and falls within the MRO NERC region. The plant is ranked 32nd out of 54 wind facilities in Iowa and 412th out of 734 nationally.
The wind farm's turbines have a hub height of 80 meters and a rotor diameter of 93 meters. The turbines were manufactured by Siemens and are model SWT-2.3-93. In its most recent year of operation, the plant generated 554,807 MWh, achieving a capacity factor of 36.2%. The installed cost of the facility was $2,053.92 per kW, according to FERC data.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
MRO
Balancing Authority
Midcontinent Independent Transmission System Operator, Inc..
Grid Voltage
161 kV
Regulatory Status
RE
Entity Type
Investor-Owned Utility
Sector
Electric Utility
Generation
51.5K MWh
Latest Month
554.8K MWh
Annual Generation
36.2%
Capacity Factor
Jan 2022 – Dec 2024
Financial DataBeta
Source: FERC Form 1HIGH
$1,697/kW
Installed Cost
MidAmerican Energy Company
Reporting Utility
Cumulative Installed Cost
Per-Unit Cost Trends
Pricing & Market Data
HIGH confidenceMarket Position
ISO/RTO Market
MISO
LMP Node
MEC.ADAIR_W1
Pricing Hub
MINN.HUB
Location Type
Generation Node
Node Source
EIA-860 direct report
News & Articles (2)Beta
Hazards·wildfire
Red Flag Warning: Sac; Calhoun; Crawford; Carroll; Greene; Boone; Audubon; Guthrie; Dallas; Polk; Cass; Adair; Madison
Red Flag Warning issued March 21 at 9:44AM CDT until March 21 at 10:00PM CDT by NWS Des Moines IA
NWS Des Moines IA·5 days ago
Industry·partnership
How Vestas won the Midwest
When Vestas clinched a conditional agreement in June to supply an eye-popping 2GW of turbines to MidAmerican Energy, it created a new...
Vestas (seller)MidAmerican Energy (buyer)
Wind Power Monthly·9 years ago
Last updated 2026-03-21
View all articles