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200.5 MW Wind operating in DeWitt, IL
200.5 MW
Nameplate Capacity
1
Generators
unit
Onshore Wind Turbine
Technology
2023
Operating Since
Coordinates
48.6462, -98.2827
County
DeWitt, IL
Nearby Plants
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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 | Alta Farms II Wind Project, LLC | Enel Green Power | — |
| Owner(s) | Alta Farms II Wind Project, LLC | Enel | — |
| Status | Operating | operating | — |
The Alta Farms II Wind Project, LLC is a 200.5 MW wind power plant located in DeWitt County, Illinois. The plant began operating in 2023 and is owned and operated by Alta Farms II Wind Project, LLC, a subsidiary of the Italian energy company Enel. It consists of a single generator utilizing onshore wind turbine technology. The facility uses Siemens Gamesa Renewable Energy SG-4.5-145 wind turbines, which have a rotor diameter of 145 meters and a hub height of 107.5 meters.
In its most recent year of operation, the plant generated 545,768 MWh of electricity, achieving a capacity factor of 31.1%. The Alta Farms II Wind Project operates within the PJM Interconnection, LLC balancing authority and the SERC NERC region. It is ranked as the 19th largest wind farm in Illinois out of 44, and 291st nationally out of 734 wind plants.
Generated from EIA, GEM, and public data sources
ISO/RTO
PJM
Market
ISO/RTO Member
NERC Region
SERC — SERC Reliability Corporation
Balancing Authority
PJM Interconnection, LLC (PJM)
Grid Voltage
345.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
64.5K MWh
Latest Month
545.8K MWh
Annual Generation
31.1%
Capacity Factor
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2023
$1,758/kW
Est. Construction Cost
Total estimated cost: $352.5M
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Market Position
ISO/RTO Market
PJM
LMP Node
ALTAFARM34.5 KV AFARMWF
Pricing Hub
N ILLINOIS HUB
Location Type
Generation Node
Node Source
Curated node match
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