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254.1 MW Wind operating in Union, IA — Midcontinent Independent Transmission System Operator, Inc..
254.1 MW
Nameplate Capacity
1
Generators
unit
Onshore Wind Turbine
Technology
2021
Operating Since
Coordinates
41.1280, -94.4202
County
Union, IA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | MidAmerican Energy Co | MidAmerican Energy Co | — |
| Owner(s) | MidAmerican Energy Co | Berkshire Hathaway | — |
| Status | Operating | operating | — |
Southern Hills Wind Farm is a 254.1 MW wind power plant located in Union County, Iowa. The facility began operating in 2021 and is owned by Berkshire Hathaway and operated by MidAmerican Energy Co. It utilizes a single generator comprised of onshore wind turbines. The plant is connected to the Midcontinent Independent Transmission System Operator (MISO) balancing authority and is within the MRO NERC region. Southern Hills Wind Farm ranks as the 12th largest wind farm in Iowa out of 54, and 155th nationally out of 734.
The wind farm's turbines are manufactured by Vestas, model V110-2.2, with a rotor diameter of 110 meters and a hub height of 95 meters. In its most recent year of operation, Southern Hills Wind Farm generated 814,400 MWh, achieving a capacity factor of 36.7%. The installed cost of the plant was $1,474.79 per kW, according to FERC data.
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
345.0 kV
Regulatory Status
RE — Regulated
Entity Type
Investor-Owned Utility
Sector
Electric Utility
80.9K MWh
Latest Month
814.4K MWh
Annual Generation
36.7%
Capacity Factor
Wind · MidAmerican Energy Company · Data from 2021–2024
$1,484/kW
Installed Cost
$7.2/MWh
Operating Cost
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
Market Position
ISO/RTO Market
MISO
LMP Node
MEC.SOTHRNHL1
Pricing Hub
MINN.HUB
Location Type
Generation Node
Node Source
Curated node match
Last updated 2026-04-19
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