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168 MW Wind operating in Mahaska, IA — Midcontinent Independent Transmission System Operator, Inc..
168 MW
Nameplate Capacity
1
Generators
unit
Onshore Wind Turbine
Technology
2018
Operating Since
Coordinates
41.4469, -92.6780
County
Mahaska, IA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | MidAmerican Energy Co | MidAmerican Energy | — |
| Owner(s) | MidAmerican Energy Co | Berkshire Hathaway | — |
| Status | Operating | operating | — |
Prairie Wind Farm is a 168 MW wind power plant located in Mahaska County, Iowa. The facility began operating in 2018 and is owned by Berkshire Hathaway and operated by MidAmerican Energy Co. It consists of a single generator utilizing onshore wind turbine technology. The plant uses Vestas V110-2.0 wind turbines, with a rotor diameter of 110 meters and a hub height of 95 meters.
The plant's primary fuel source is wind (WND). In its most recent year of operation, Prairie Wind Farm generated 591,772 MWh of electricity, achieving a capacity factor of 40.2%. The plant operates within the Midcontinent Independent Transmission System Operator, Inc. (MISO) balancing authority and the MRO NERC region. The installed cost of the plant was $1512.47 per kW, according to FERC data. Prairie Wind Farm ranks as the 34th largest wind farm in Iowa out of 54, and 426th nationally out of 734.
Generated from EIA, GEM, and public data sources
ISO/RTO
MISO
Market
ISO/RTO Member
NERC Region
MRO — Midwest Reliability Organization
Balancing Authority
Midcontinent Independent Transmission System Operator, Inc.. (MISO)
Grid Voltage
161.0 kV
Regulatory Status
RE — Regulated
Entity Type
Investor-Owned Utility
Sector
Electric Utility
61.2K MWh
Latest Month
591.8K MWh
Annual Generation
40.2%
Capacity Factor
Wind · MidAmerican Energy Company · Data from 2017–2024
$1,494/kW
Installed Cost
$7.7/MWh
Operating Cost
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
Point of Interconnection
Nearest Substation
Irvine Substation · 161 kV
Substation Distance
< 10 km
Operator
ITC
Coord Source
OSM spatial
Market Position
ISO/RTO Market
MISO
LMP Node
MEC.PRAIRIE
Pricing Hub
MINN.HUB
Alt. Hub / Zone
ILLINOIS.HUB
Location Type
Generation Node
Node Source
EIA-860 direct report
Last updated 2026-03-14
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