Orient Wind Farm — Plant Summary
- EIA Plant ID
- 61077
- Capacity
- 500.8 MW
- Primary Fuel
- Wind
- Technology
- Onshore Wind Turbine
- Status
- Operating
- Location
- Adair, IA
- Operating Since
- 2018
- Generators
- 2
- Operator
- MidAmerican Energy Co
- Parent Company
- Berkshire Hathaway
- Annual Generation
- 1,819,787 MWh
- Capacity Factor
- 41.6%
- Balancing Authority
- Midcontinent Independent Transmission System Operator, Inc..
- ISO/RTO
- MISO
- NERC Region
- MRO
Orient Wind Farm
OperatingWind
Ranked #2 of 122 Wind plants in IA#26 of 1442 nationally
500.8 MW Wind operating in Adair, IA — Midcontinent Independent Transmission System Operator, Inc..
EIAGEMWD
500.8 MW
Nameplate Capacity
2
Generators
units
Onshore Wind Turbine
Technology
2018
Operating Since
Location
Coordinates
41.2144, -94.4071
County
Adair, IA
Nearby Plants
- Cumberland RoseWind1.6 MW · 2.7 km
- BulldogWind1.5 MW · 3.1 km
- Southern Hills Wind FarmWind254.1 MW · 9.7 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | MidAmerican Energy Co | MidAmerican Energy | — |
| Owner(s) | MidAmerican Energy Co | Berkshire Hathaway | — |
| Status | Operating | operating | — |
Ownership Chain
About
Orient Wind Farm is a 500.8 MW wind power plant located in Adair County, Iowa. The facility began operating in 2018 and is owned by Berkshire Hathaway and operated by MidAmerican Energy Co. It consists of two generators utilizing onshore wind turbine technology. The plant uses Vestas V110-2.0 turbines, with a rotor diameter of 110 meters and a hub height of 95 meters.
The plant's latest annual generation was 1,819,787 MWh, resulting in a capacity factor of 41.6%. Orient Wind Farm operates within the Midcontinent Independent Transmission System Operator (MISO) balancing authority and the MRO NERC region. The plant's installed cost was $385.05 per kW, according to FERC data. Orient Wind Farm is the second-largest wind farm in Iowa out of 54, and ranks 26th nationally out of 734 wind farms.
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
345 kV
Regulatory Status
RE
Entity Type
Investor-Owned Utility
Sector
Electric Utility
Generation
182.4K MWh
Latest Month
1.8M MWh
Annual Generation
41.6%
Capacity Factor
Jan 2023 – Dec 2025
Financial DataBeta
Source: FERC Form 1HIGH
$1,612/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.ORIENT1
Pricing Hub
MINN.HUB
Location Type
Generation Node
Node Source
EIA-860 direct report
News & Articles (3)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
Hazards·tornado
This week's storms cause 'widespread, significant' farm damage in Iowa, topple 10 turbines
Iowa farmers are reporting “widespread, significant damage” to homes, outbuildings and grain bins after storms tore through the state Tuesday.
Iowa (other)
The Des Moines Register·1 years ago
Grid·outage
MidAmerican Energy takes 46 wind turbines offline after blades fall in rural Iowa
The Des Moines-based subsidiary of Warren Buffett-owned Berkshire Hathaway says it will inspect the wind turbines for safety.
MidAmerican Energy (operator)Berkshire Hathaway (other)
The Des Moines Register·5 years ago
Last updated 2026-03-21
View all articles