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100 MW Solar operating in Dodge, WI
100 MW
Nameplate Capacity
1
Generators
unit
Solar Photovoltaic
Technology
2023
Operating Since
Coordinates
43.6040, -88.4421
County
Dodge, 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 | — |
Located in Dodge County, Wisconsin, the Springfield Solar (WI) facility is a 100 MW solar photovoltaic power plant that began operating in 2023. The plant, owned by Alliant Energy and operated by Wisconsin Power & Light Co, utilizes single-axis tracking technology to maximize solar energy capture. It is interconnected to the Midcontinent Independent Transmission System Operator, Inc. (MISO) balancing authority and falls within the MRO NERC region.
Springfield Solar (WI) consists of a single generator and has a capacity factor of 23.2%. In its most recent year of operation, the plant generated 203,616 MWh of electricity. According to available data, the installed cost was $2,353 per kW, based on information reported to FERC. The plant is currently ranked as the 10th largest solar facility in Wisconsin out of 11, and 580th nationally out of 639.
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.
6.9K MWh
Latest Month
203.6K MWh
Annual Generation
23.2%
Capacity Factor
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Solar photovoltaic · Wisconsin Power and Light Company · Data from 2023–2024
$2,338/kW
Installed Cost
$-15/kW
Annual CapEx
$0.2/MWh
Operating Cost
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Point of Interconnection
Nearest Substation
Butternut · 138 kV
Substation Distance
< 10 km
Coord Source
OSM spatial
Market Position
ISO/RTO Market
MISO
LMP Node
ALTE.SPRINGFD
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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