Spirit Mound
Spirit Mound is a 135 MW oil-fired power plant in Clay County, South Dakota, operated by Basin Electric Power Coop. EIA-860M lists 2 generating units here, inside SPP. Its units entered service in 1978.
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
- 135 MW
- 95 MW net summer
- Generating units
- 2
- In service
- 1978
- EIA plant ID
- 6092
Where it is
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- County
- Clay County, South Dakota
- Coordinates
- 42.8977, -96.9905
- Balancing authority
- SWPP
- Sector
- Electric Utility
Units, technology and status
- Operator of record
- Basin Electric Power Coop
- Primary energy source
- Petroleum
- Technologies
- Petroleum Liquids
- Status
- Operating
Spirit Mound: FAQ
- Where is Spirit Mound?
- In Clay 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 Spirit Mound?
- 135 MW of nameplate capacity across 2 units, as of the EIA-860M release for 2026-07.
- Who owns Spirit Mound?
- EIA-860M names Basin Electric Power Coop 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 Spirit Mound LLC?
- Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Basin Electric Power Coop 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 "Spirit Mound LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
- Is Spirit Mound still running?
- EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.