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

2 MW of nameplate capacity across 3 units, as of the EIA-860M release for 2026-07.

EIA-860M names ALLETE, Inc. 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 Sylvan LLC?

Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — ALLETE, Inc. 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 "Sylvan LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.

Is Sylvan still running?

EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.

Sylvan

Sylvan is a 2 MW hydroelectric power plant in Cass County, Minnesota, operated by ALLETE, Inc.. EIA-860M lists 3 generating units here, inside MISO. Its units entered service between 1913 and 1915.

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: 1.8 MW; 1.8 MW net summer
Generating units: 3
In service: 1913–1915
EIA plant ID: 1900

Where it is

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County: Cass County, Minnesota
Coordinates: 46.305, -94.3775
Balancing authority: MISO
Sector: Electric Utility

Units, technology and status

Operator of record: ALLETE, Inc.
Primary energy source: Hydro
Technologies: Conventional Hydroelectric
Status: Operating

Every plant ALLETE, Inc. reports to EIA →

Sylvan: FAQ

Where is Sylvan?: In Cass County, Minnesota (MN). 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 Sylvan?: 2 MW of nameplate capacity across 3 units, as of the EIA-860M release for 2026-07.
Who owns Sylvan?: EIA-860M names ALLETE, Inc. 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 Sylvan LLC?: Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — ALLETE, Inc. 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 "Sylvan LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Sylvan still running?: EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.