299.3 MW Wind operating in Clay, IA — Midcontinent Independent Transmission System Operator, Inc..
299.3 MW
Nameplate Capacity
1
Generators
unit
Onshore Wind Turbine
Technology
2019
Operating Since
Coordinates
43.2077, -95.3259
County
Clay, 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 | — |
Upland Prairie is a 299.3 MW wind power plant located in Clay County, Iowa. The plant, which began operating in 2019, is owned by Alliant Energy and operated by Interstate Power and Light Co. It utilizes a single generator consisting of onshore wind turbines manufactured by GE Wind, specifically the GE2.5-116 model, with a rotor diameter of 116 meters and a hub height of 90 meters. Upland Prairie ranks as the 10th largest wind farm in Iowa out of 54, and 111th nationally out of 734.
The plant's latest annual generation was 1,084,946 MWh, resulting in a capacity factor of 41.5%. The installed cost was $1615.24 per kW, according to FERC data. Upland Prairie operates within the Midcontinent Independent Transmission System Operator (MISO) balancing authority and the MRO NERC region. The plant is fueled by wind (WND).
Generated from EIA, GEM, and public data sources
NERC Region
MRO
Balancing Authority
Midcontinent Independent Transmission System Operator, Inc..
Grid Voltage
345 kV
Regulatory Status
RE
Entity Type
Investor-Owned Utility
Sector
Electric Utility
105.9K MWh
Latest Month
1.1M MWh
Annual Generation
41.5%
Capacity Factor
$1,631/kW
Installed Cost
$4.1/MWh
Operating Cost
Interstate Power and Light Company
Reporting Utility
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
Point of Interconnection
Nearest Substation
Upland Prairie Wind Farm · 345 kV
Substation Distance
< 10 km
Operator
Alliant Energy
Coord Source
OSM spatial
Market Position
ISO/RTO Market
MISO
LMP Node
ALTW.UPLANDPR
Pricing Hub
MINN.HUB
Location Type
Generation Node
Node Source
EIA-860 direct report
Last updated 2026-03-26
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