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207.1 MW Wind operating in Guthrie, IA — Midcontinent Independent Transmission System Operator, Inc..
207.1 MW
Nameplate Capacity
1
Generators
unit
Onshore Wind Turbine
Technology
2012
Operating Since
Coordinates
41.5547, -94.6850
County
Guthrie, IA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | MidAmerican Energy Co | MidAmerican Energy | — |
| Owner(s) | MidAmerican Energy Co | Berkshire Hathaway | — |
| Status | Operating | operating | — |
Eclipse Wind Farm is a 207.1 MW wind power plant located in Guthrie County, Iowa. The facility began operating in 2012 and is owned by Berkshire Hathaway and operated by MidAmerican Energy Co. The plant utilizes a single generator comprised of multiple Siemens Gamesa Renewable Energy SG2.38-129 onshore wind turbines. These turbines have a rotor diameter of 129 meters and a hub height of 80 meters.
The wind farm 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 831,978 MWh, achieving a capacity factor of 46.0%. Eclipse Wind Farm ranks as the 19th largest wind farm in Iowa out of 54, and 245th nationally out of 734. The plant's installed cost was $1662.46 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
84.7K MWh
Latest Month
832.0K MWh
Annual Generation
46.0%
Capacity Factor
Wind · MidAmerican Energy Company · Data from 2015–2024
$2,596/kW
Installed Cost
$6.0/MWh
Operating Cost
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
Point of Interconnection
Nearest Substation
Eclipse Substation · 345 kV
Substation Distance
< 10 km
Operator
MidAmerican Energy
Coord Source
OSM spatial
Market Position
ISO/RTO Market
MISO
LMP Node
MEC.ECLIPSE1
Pricing Hub
MINN.HUB
Location Type
Generation Node
Node Source
EIA-860 direct report
Last updated 2026-04-19
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