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171.5 MW Wind operating in Poweshiek, IA — Midcontinent Independent Transmission System Operator, Inc..
171.5 MW
Nameplate Capacity
1
Generators
unit
Onshore Wind Turbine
Technology
2019
Operating Since
Coordinates
41.5486, -92.4018
County
Poweshiek, IA
Nearby Plants
Owner data does not fully agree across sources.
EIA typically reports the operating utility, while GEM resolves to the financial owner or parent corporation. Both can be correct.
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Interstate Power and Light Co | Alliant Energy | — |
| Owner(s) | Interstate Power and Light Co | Alliant Energy | — |
| Status | Operating | operating | — |
English Farms is a 171.5 MW wind power plant located in Poweshiek County, Iowa. The facility, which began operating in 2019, is owned and operated by Interstate Power and Light Co, a subsidiary of Alliant Energy. The plant consists of a single generator utilizing onshore wind turbine technology. The turbines are manufactured by GE Wind, model GE2.5-127, with a hub height of 89 meters and a rotor diameter of 127 meters.
In its most recent year of operation, English Farms generated 571,032 MWh of electricity, achieving a capacity factor of 38.1%. The plant is interconnected to the Midcontinent Independent Transmission System Operator (MISO) balancing authority. With a total installed cost of $1,672.71 per kW, financial data for the plant is sourced from FERC filings. English Farms is ranked as the 33rd largest power plant in Iowa out of 54, and 417th nationally out of 734 plants.
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
60.7K MWh
Latest Month
571.0K MWh
Annual Generation
38.1%
Capacity Factor
Wind · Interstate Power and Light Company · Data from 2019–2024
$1,779/kW
Installed Cost
$25/kW
Annual CapEx
$5.9/MWh
Operating Cost
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
Market Position
ISO/RTO Market
MISO
LMP Node
ALTW.ENGLFARMS
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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