# Wheaton

MISO asset profile · https://askthegrid.com/assets/facilities/wheaton

## Current generation inventory

EIA plant 4014 · Inventory reporting month: 2026-08.

- natural gas: 298.1 MW operating nameplate
- Capacity basis: operating_generator_nameplate_mw
- Source inventory: [EIA-860M workbook (preliminary)](https://www.eia.gov/electricity/data/eia860m/xls/august_generator2026.xlsx)
- Inventory retrieved: 2026-10-10T02:12:40.665346+00:00
- Filed coordinate (longitude, latitude): -91.51583, 44.885416
- OSM extract: 2026-10-08T20:21:06Z
- OSM mapped edit: 2024-05-30 12:24:57+00:00
- Map prepared: 2026-10-10T02:28:23.331578+00:00

Battery power (MW) and stored energy (MWh) are separate measures. Shared physical-site membership does not establish electrical connectivity, settlement or a common export limit.

## Reviewed overview

Wheaton Generating Station is a Northern States Power Company-Wisconsin plant in the Town of Wheaton, Chippewa County, Wisconsin. Its repowering adds a 210 MW F-class combustion turbine and five 9 MW reciprocating engines, 255 MW in all, able to burn natural gas or No. 2 fuel oil, on about six acres. The engines are Wärtsilä 34DF units under a ten-year maintenance agreement with Xcel Energy. Wheaton Units 1-4 and 6 would be retired in conjunction with the project.

## Reviewed metrics

- **Nameplate capacity:** 298.1 MW — Canonical EIA plant baseline.
- **Registry anchor:** Plant 4014 — plant-4014

## Facts

- **Technology:** Natural Gas Internal Combustion Engine, Natural Gas Fired Combustion Turbine
- **Operator:** Northern States Power Company-Wisconsin

## Related parties

- **Owner / operator / transmission owner:** Northern States Power Company-Wisconsin — owner ([source](https://www.xcelenergy.com))
- **Parent company:** Xcel Energy — parent_company ([source](https://www.xcelenergy.com))

## Sources

- [psc.wi.gov](https://psc.wi.gov:443/Pages/CommissionActions/CasePages/WheatonRICEProject.aspx) — psc.wi.gov · authoritative — Source retained for exact-record publication review.
- [wartsila.com](https://www.wartsila.com/media/news/16-01-2025-two-more-u-s-power-plants-to-be-supported-with-long-term-wartsila-service-agreements-3538616) — wartsila.com · public_source — Source retained for exact-record publication review.

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Canonical page: https://askthegrid.com/assets/facilities/wheaton
Website: [Northern States Power Company-Wisconsin](https://www.xcelenergy.com)

Source: Ask the Grid — https://askthegrid.com/