Where is Rhinelander Mill?

In Oneida County, Wisconsin (WI). The map on this page is placed at the coordinates EIA files for the plant, which locate the site rather than any individual unit.

How big is Rhinelander Mill?

21 MW of nameplate capacity across 5 units, as of the EIA-860M release for 2026-07.

Who owns Rhinelander Mill?

EIA-860M names Ahlstrom-Munksjo as the reporting entity. That is the operator of record on the survey, which is not always the ultimate owner.

Is this the same as Rhinelander Mill LLC?

Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Ahlstrom-Munksjo here — not the project company that holds the asset. Project companies are commonly registered as an LLC carrying the plant's name, so a search for "Rhinelander Mill LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.

Is Rhinelander Mill still running?

EIA-860M files it as "Out of service and NOT expected to return to service in next calendar year" for 2026-07. Statuses change monthly, and this page follows the monthly release.

Rhinelander Mill

Rhinelander Mill is a 21 MW natural gas power plant in Oneida County, Wisconsin, operated by Ahlstrom-Munksjo. EIA-860M lists 5 generating units here, inside MISO. Its units entered service between 1917 and 1958.

As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m

Nameplate capacity: 21.3 MW; 12.3 MW net summer
Generating units: 5
In service: 1917–1958
EIA plant ID: 50933

Where it is

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County: Oneida County, Wisconsin
Coordinates: 45.6394, -89.4205
Balancing authority: MISO
Sector: Industrial CHP

Units, technology and status

Operator of record: Ahlstrom-Munksjo
Primary energy source: Natural gas
Technologies: Conventional Hydroelectric, Conventional Steam Coal, Natural Gas Steam Turbine
Status: Out of service and NOT expected to return to service in next calendar year (3) · Operating (2)

This site runs on more than one energy source. EIA-860M capacity splits: Natural gas 10 MW, Coal 9 MW, Hydro 2 MW. It is filed here under Natural gas, the source with the most capacity.

Every plant Ahlstrom-Munksjo reports to EIA →

Rhinelander Mill: FAQ

Where is Rhinelander Mill?: In Oneida County, Wisconsin (WI). The map on this page is placed at the coordinates EIA files for the plant, which locate the site rather than any individual unit.
How big is Rhinelander Mill?: 21 MW of nameplate capacity across 5 units, as of the EIA-860M release for 2026-07.
Who owns Rhinelander Mill?: EIA-860M names Ahlstrom-Munksjo as the reporting entity. That is the operator of record on the survey, which is not always the ultimate owner.
Is this the same as Rhinelander Mill LLC?: Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Ahlstrom-Munksjo here — not the project company that holds the asset. Project companies are commonly registered as an LLC carrying the plant's name, so a search for "Rhinelander Mill LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Rhinelander Mill still running?: EIA-860M files it as "Out of service and NOT expected to return to service in next calendar year" for 2026-07. Statuses change monthly, and this page follows the monthly release.