Columbia (WI)

Columbia (WI) — 1,112 MW coal plant, Columbia County, WI · Ask the Grid

Generation and physical site

EIA plant 8023 · Inventory for Sep 2026.

Reported operating nameplate by technology

Coal: 1,112 MW

Operating generators only. Battery power is in MW; stored energy is in MWh. These ratings do not establish a shared export limit.

Generator records (2)

EIA generator status and nameplate capacity for Columbia (WI)
Generator	Technology	Status	Power (MW)	Energy (MWh)
1	Conventional Steam Coal	Operating	556	Unknown
2	Conventional Steam Coal	Operating	556	Unknown

Physical map location · OpenStreetMap: 43.48626, -89.41978
Filed location · EIA: 43.48640, -89.42030

Sources and observation dates

Inventory source: EIA-860M workbook (preliminary)
EIA reporting month: Sep 2026
EIA retrieved: Oct 24, 2026
OSM extract: Oct 9, 2026
OSM last mapped edit: May 30, 2024
Map prepared: Oct 24, 2026
Field verification: Not reported

Reporting month describes the inventory. Retrieval and map preparation describe processing; an OSM edit does not establish an in-service date.

EIA source inventory

Units and generators

Current generator records and technology attributes reported through EIA-860.

Generator	Capacity	Technology	Operation	Status
1	556 MW 568 MW summer	Conventional Steam Coal ST	May 1975 Retirement: Dec 2029	Operating
2	556 MW 560.3 MW summer	Conventional Steam Coal ST	May 1978 Retirement: Dec 2029	Operating

Related parties and identifiers

Parties, market resources, and identifiers tied to this asset, with owner, operator, developer, EPC, compliance provider, and interconnecting entity roles kept separate.

Parties and identifiers

OrganizationRoleBasis

Reporting portfolio

EIA reporting entity

Wisconsin Power & Light Co

Entity 20856

Operating portfolio

33 plants

3 states

Reported capacity

5,776.7 MW

Batteries · Conventional Hydroelectric · Conventional Steam Coal

Largest reported plants in this portfolio
Largest reported plants	Capacity	State
Columbia (WI)Current	1,112 MW	WI
West Riverside Energy Center	727.6 MW	WI
Riverside Energy Center	674.9 MW	WI
Edgewater	413.7 MW	WI
South Fond Du Lac	381.6 MW	WI
Alliant Energy Neenah	371 MW	WI
Sheboygan Falls	346.8 MW	WI
Grant County	300 MW	WI

Portfolio membership follows the latest EIA-860 reporting entity. It does not imply ultimate ownership.

View full reporting portfolio

Timeline and sources

Project milestones and public references behind the asset profile.

Project timeline

May 1975
May 1975
Generator enters operationEIA-860
EIA-860 lists generator 1 with this operating date.
May 1978
May 1978
Generator enters operationEIA-860
EIA-860 lists generator 2 with this operating date.
Dec 2024
Dec 2024
Columbia retirement pushed to end of 2029wpr.org
Co-owners extend operation to evaluate gas conversion of at least one unit.
Jun 5, 2026
Jun 5, 2026
Federal coal modernization funding expectedwpr.org
$19 million expected toward $48.5 million in upgrades.
Dec 2029
Dec 2029
Planned generator retirementEIA-860
EIA-860 lists a planned retirement for generator 1, generator 2.

Sources

PublisherReferenceType

U.S. Energy Information AdministrationEIA-860 generator inventoryFederal registry

U.S. Energy Information AdministrationEIA-923 generation filingsFederal filing

wpr.orgwpr.orgpublic_source

Common questions about Columbia (WI)

Answered from the published record above. Questions whose inputs this profile does not carry are omitted rather than estimated.

How big is Columbia (WI)?

Columbia (WI) reports 1,112 MW coal of operating nameplate capacity. These technology ratings do not establish a common export limit. Source: EIA Sep 2026.

What kind of plant is Columbia (WI)?

Columbia (WI) is a Conventional Steam Coal facility in Columbia County, WI, participating in the MISO market.

Where is Columbia (WI) located?

Columbia (WI) is in Columbia County, WI, inside the MISO balancing area.

Who operates Columbia (WI)?

Columbia (WI) is operated by Wisconsin Power & Light Co according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.

How much electricity does Columbia (WI) generate?

Columbia (WI) reported 5,210 GWh over the twelve months to 2026-08. Figures are net generation as filed to EIA-923.

How does Columbia (WI) compare to other plants?

By capacity, Columbia (WI) ranks #72 of 205 operating plants of the same technology nationally. It ranks #2 of 6 in WI.

Co-located assets

Plants within 25 km, nearest first, regardless of technology. Proximity is straight-line distance between mapped plant coordinates; it does not by itself establish a shared point of interconnection.

Portage Industrial BatteryBatteriesBatteries5 MW9.1 km Portage Solar PlantSolar PhotovoltaicSolar Photovoltaic12 MW20 km Glacier HillsOnshore Wind TurbineOnshore Wind Turbine162 MW24 km

Overview

Infrastructure record

Columbia (WI)

Overview

Infrastructure record

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Structured profile

Generation and physical site

Reported operating nameplate by technology

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