Riverside Energy Center — Plant Summary
- EIA Plant ID
- 55641
- Capacity
- 674.9 MW
- Primary Fuel
- Natural Gas
- Technology
- Natural Gas Fired Combined Cycle
- Status
- Operating
- Location
- Rock, WI
- Operating Since
- 2004
- Generators
- 3
- Operator
- Wisconsin Power & Light Co
- Parent Company
- —
- Annual Generation
- 3,307,977 MWh
- Capacity Factor
- 55.9%
- Balancing Authority
- Midcontinent Independent Transmission System Operator, Inc..
- ISO/RTO
- MISO
- NERC Region
- MRO
Riverside Energy Center
OperatingNatural Gas
Ranked #4 of 40 Natural Gas plants in WI#339 of 2009 nationally
674.9 MW Natural Gas operating in Rock, WI — Midcontinent Independent Transmission System Operator, Inc..
EIAWD
674.9 MW
Nameplate Capacity
3
Generators
units
Natural Gas Fired Combined Cycle
Technology
2004
Operating Since
Location
Coordinates
42.5831, -89.0358
County
Rock, WI
Nearby Plants
- West Riverside Energy CenterNatural Gas727.6 MW · 0.5 km
- HQC Rock River Solar Power Gen StationSolar2.1 MW · 0.5 km
- Beloit Memorial Hospital Power PlantNatural Gas3 MW · 4.4 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Wisconsin Power & Light Co | — | — |
| Owner(s) | Wisconsin Power & Light Co | — | — |
| Status | Operating | — | — |
Ownership Chain
No GEM tracker match for this plant — ownership chain unavailable.
About
Riverside Energy Center is an electrical power station located north of Beloit, Wisconsin in the Town of Beloit, just west of the Rock River. It consists of two 2-on-1 units. The facility is owned and operated by Alliant Energy.
Read more on WikipediaRiverside Energy Center is a 674.9 MW natural gas-fired combined cycle power plant located in Rock County, Wisconsin. The plant began operating in 2004 and is owned and operated by Wisconsin Power & Light Co. It consists of 3 generators utilizing natural gas as its primary fuel source. Riverside Energy Center is connected to the Midcontinent Independent Transmission System Operator (MISO) and falls within the MRO NERC region.
In the most recent year of record, the plant generated 3,307,977 MWh of electricity, achieving a capacity factor of 55.9%. Riverside Energy Center is the 4th largest power plant in Wisconsin out of 19, and ranks 342nd nationally out of 945 plants. The installed cost of the facility was $853.05 per kW, according to FERC data.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
MRO
Balancing Authority
Midcontinent Independent Transmission System Operator, Inc..
Grid Voltage
138 kV
Regulatory Status
RE
Entity Type
Investor-Owned Utility
Sector
Electric Utility
Generation
358.8K MWh
Latest Month
3.3M MWh
Annual Generation
55.9%
Capacity Factor
Jan 2023 – Dec 2025
Financial DataBeta
Source: FERC Form 1HIGH
$875/kW
Installed Cost
$25.3/MWh
Operating Cost
Wisconsin Power and Light Company
Reporting Utility
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
Pricing & Market Data
HIGH confidencePoint of Interconnection
Nearest Substation
Boc Gasses · 138 kV
Substation Distance
< 10 km
Coord Source
OSM spatial
Market Position
ISO/RTO Market
MISO
LMP Node
ALTE.CC.RIVS1
Pricing Hub
MICHIGAN.HUB
Location Type
Generation Node
Node Source
EIA-860 direct report
News & Articles (10)Beta
Industry·corporate
Alliant Energy’s proposed natural gas facility fuels Beloit area climate concerns
The facility would house more than two billion cubic feet of fossil fuels in Rock County, Wisconsin.
Alliant Energy (operator)
WIFR·8 months ago
Regulatory·permitting
State seeking public input on Alliant Energy's expansion plans in Town of Beloit
Public comment is being sought on a proposed $52.8 million expansion at the West Riverside Energy Center in the Town of Beloit.
Alliant Energy (developer)West Riverside Energy Center (operator)
Beloit Daily News·1 years ago
Industry·earnings
WEC Energy Group Concentrates on Natural Gas, Solar to Meet Data Center Growth
WEC Energy Group's second-quarter earnings call zeroed in on new natural gas and solar generation to bolster Wisconsin's economic...
WEC Energy Group (operator)
RTO Insider·1 years ago
Deals·m and a
We Energies wants to buy a second share of Alliant's West Riverside natural gas plant in Beloit
We Energies would double its share of the natural gas power produced by Alliant Energy's West Riverside Energy Center in Beloit, according to a proposal now...
We Energies (buyer)Alliant Energy (seller)
Milwaukee Journal Sentinel·2 years ago
Last updated 2026-03-14
View all 10 articles