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75 MW Solar operating in Jefferson, WI
75 MW
Nameplate Capacity
1
Generators
unit
Solar Photovoltaic
Technology
2023
Operating Since
Coordinates
43.0000, -88.8764
County
Jefferson, WI
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 | Wisconsin Power & Light Co | Wisconsin Power and Light | — |
| Owner(s) | Wisconsin Power & Light Co | Alliant Energy | — |
| Status | Operating | operating | — |
Crawfish River is a 75 MW solar photovoltaic power plant located in Jefferson County, Wisconsin. The plant, which began operating in 2023, utilizes single-axis tracking technology. It is owned by Alliant Energy and operated by Wisconsin Power & Light Co. The plant is connected to the Midcontinent Independent Transmission System Operator (MISO) and resides within the MRO NERC region.
In its latest year of operation, Crawfish River generated 131,047 MWh of electricity, achieving a capacity factor of 19.9%. The plant ranks as the 13th largest solar facility in Wisconsin (out of 99) and 784th nationally (out of 7108). Financial data indicates an installed cost of $1,529 per kW, as reported to FERC.
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
138.0 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.
3.6K MWh
Latest Month
131.0K MWh
Annual Generation
19.9%
Capacity Factor
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Solar photovoltaic · Wisconsin Power and Light Company · Data from 2023–2024
$1,603/kW
Installed Cost
$74/kW
Annual CapEx
$6.4/MWh
Operating Cost
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Point of Interconnection
Nearest Substation
Crawfish River Solar · 138 kV
Substation Distance
< 10 km
Operator
Alliant Energy
Coord Source
OSM spatial
Market Position
ISO/RTO Market
MISO
LMP Node
ALTE.CRAWFISH
Pricing Hub
MICHIGAN.HUB
Alt. Hub / Zone
ILLINOIS.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 2026-03-26
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