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201.3 MW Wind operating in Franklin, IA
201.3 MW
Nameplate Capacity
1
Generators
unit
Onshore Wind Turbine
Technology
2020
Operating Since
Coordinates
42.7750, -93.4181
County
Franklin, IA
Nearby Plants
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| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Interstate Power and Light Co | Interstate Power and Light | — |
| Owner(s) | Interstate Power and Light Co | Alliant Energy | — |
| Status | Operating | — | — |
Whispering Willow North is a 201.3 MW wind power plant located in Franklin County, Iowa. The facility began operating in 2020 and is owned by Alliant Energy and operated by Interstate Power and Light Co. It consists of a single generator utilizing onshore wind turbine technology. The plant is connected to the Midcontinent Independent Transmission System Operator (MISO) balancing authority.
The plant's primary fuel source is wind (WND). Its wind turbines have a hub height of 89 meters and a rotor diameter of 127 meters. The turbines were manufactured by GE Wind, model GE2.5-127. In its most recent year of operation, Whispering Willow North generated 733,862 MWh, achieving a capacity factor of 41.7%. The plant ranks 23rd out of 54 wind facilities in Iowa, and 275th out of 734 nationally. The installed cost was $1763.12 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
Monthly net generation as reported to EIA-923 — useful for historical context. Confidence varies sharply by fuel type; the band above and the “About this data” button explain the caveats specific to this plant and how InfraSure’s in-house model handles them.
78.1K MWh
Latest Month
733.9K MWh
Annual Generation
41.7%
Capacity Factor
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Wind · Interstate Power and Light Company · Data from 2020–2024
$1,847/kW
Installed Cost
$22/kW
Annual CapEx
$3.3/MWh
Operating Cost
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
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Point of Interconnection
Nearest Substation
Jerry L. Plagge Collector Substation · 345 kV
Substation Distance
< 10 km
Operator
Alliant Energy
Coord Source
OSM spatial
Market Position
ISO/RTO Market
MISO
LMP Node
ALTW.WWNORTH
Pricing Hub
MINN.HUB
Location Type
Generation Node
Node Source
EIA-860 direct report
No wholesale contracts disclosed in FERC EQR for this plant.
FERC EQR captures bilateral wholesale energy + capacity contracts ≥$1M/yr filed quarterly by jurisdictional sellers — covers renewable PPAs, thermal energy sales agreements, capacity contracts, and tolling agreements alike. Many plants don't appear: regulated-utility output flows to ratepayers via cost-of-service rather than bilateral contracts; small projects fall below the filing threshold; tax-equity-financed renewables route offtake to investors not utilities; merchant plants sell into ISO clearing markets without bilateral contracts. News-extracted buyer facts (below) may surface contracts disclosed only through announcements.
Last updated 2026-04-09
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