286.4 MW Wind operating in Pocahontas, IA — Midcontinent Independent Transmission System Operator, Inc..
286.4 MW
Nameplate Capacity
4
Generators
units
Onshore Wind Turbine
Technology
2007
Operating Since
Coordinates
42.5978, -94.7533
County
Pocahontas, IA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | MidAmerican Energy Co | EDF Renewables | — |
| Owner(s) | MidAmerican Energy Co | Berkshire Hathaway | — |
| Status | Operating | retired | — |
The Pomeroy Wind Farm is a 286.4 MW wind power plant located in Pocahontas County, Iowa. The plant began operating in 2007 and consists of four onshore wind turbine generators. The facility is owned by Berkshire Hathaway and operated by MidAmerican Energy Co. It utilizes Siemens Gamesa Renewable Energy SG2.66-129 turbines, with a rotor diameter of 129 meters and a hub height of 80 meters. Pomeroy Wind Farm ranks as the 11th largest wind farm in Iowa out of 54, and 131st nationally out of 734.
The plant operates within the Midcontinent Independent Transmission System Operator (MISO) balancing authority and the MRO NERC region. In its most recent year of operation, the plant generated 1,003,340 MWh of electricity, achieving a capacity factor of 40.1%. The installed cost of the plant was $1,870.81 per kW, according to FERC data.
Generated from EIA, GEM, and public data sources
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
101.9K MWh
Latest Month
1.0M MWh
Annual Generation
40.1%
Capacity Factor
$1,834/kW
Installed Cost
MidAmerican Energy Company
Reporting Utility
Cumulative Installed Cost
Per-Unit Cost Trends
Point of Interconnection
Nearest Substation
Pomeroy Wind Farm · 161 kV
Substation Distance
< 10 km
Operator
MidAmerican Energy
Coord Source
OSM spatial
Market Position
ISO/RTO Market
MISO
LMP Node
MEC.POCHNT_1
Pricing Hub
MINN.HUB
Location Type
Generation Node
Node Source
EIA-860 direct report
Last updated 2026-03-26
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