Rock Rapids
Rock Rapids is a 3 MW oil-fired power plant in Lyon County, Iowa, operated by Rock Rapids Municipal Utility - (IA). EIA-860M lists 1 generating unit here, inside SPP. Its unit entered service in 1968.
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
- 2.5 MW
- 2.5 MW net summer
- Generating units
- 1
- In service
- 1968
- EIA plant ID
- 1181
Where it is
Loading map…
- County
- Lyon County, Iowa
- Coordinates
- 43.4294, -96.1692
- Balancing authority
- SWPP
- Sector
- Electric Utility
Units, technology and status
- Operator of record
- Rock Rapids Municipal Utility - (IA)
- Primary energy source
- Petroleum
- Technologies
- Petroleum Liquids
- Status
- Operating
Every plant Rock Rapids Municipal Utility - (IA) reports to EIA →
Rock Rapids: FAQ
- Where is Rock Rapids?
- In Lyon County, Iowa (IA). 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 Rock Rapids?
- 3 MW of nameplate capacity across 1 unit, as of the EIA-860M release for 2026-07.
- Who owns Rock Rapids?
- EIA-860M names Rock Rapids Municipal Utility - (IA) 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 Rock Rapids LLC?
- Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Rock Rapids Municipal Utility - (IA) 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 "Rock Rapids LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
- Is Rock Rapids still running?
- EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.