Lange Generating Station
Lange Generating Station is a 40 MW natural gas power plant in Pennington County, South Dakota, operated by Black Hills Power, Inc.. EIA-860M lists 1 generating unit here. Its unit entered service in 2002.
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
- 40 MW
- 34 MW net summer
- Generating units
- 1
- In service
- 2002
- EIA plant ID
- 55478
Where it is
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- County
- Pennington County, South Dakota
- Coordinates
- 44.1218, -103.2641
- Balancing authority
- WACM
- Sector
- Electric Utility
Units, technology and status
- Operator of record
- Black Hills Power, Inc.
- Primary energy source
- Natural gas
- Technologies
- Natural Gas Fired Combustion Turbine
- Status
- Operating
Lange Generating Station: FAQ
- Where is Lange Generating Station?
- In Pennington County, South Dakota (SD). 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 Lange Generating Station?
- 40 MW of nameplate capacity across 1 unit, as of the EIA-860M release for 2026-07.
- Who owns Lange Generating Station?
- EIA-860M names Black Hills Power, 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 Lange Generating Station LLC?
- Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Black Hills Power, 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 "Lange Generating Station LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
- Is Lange Generating Station still running?
- EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.