Rock Rapids
Lyon County, Iowa · EIA plant ID 1181 · Operator: Rock Rapids Municipal Utility
Nameplate3MWSummer 3 MW
Generators1in service
Net generation0GWh12 mo to Dec 2025
Capacity factor0%gas/coal/oil units, summer MW
Heat rate12,050Btu/kWhfossil units, electric fuel, HHV
First online1968Runs as rarely runs
Monthly net generation
EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
Capacity factor by year
Net MWh ÷ (summer MW × hours), gas/coal/oil units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2001 | 0 | 0.1% | 11,353 |
| 2002 | 0 | 0.2% | 10,657 |
| 2003 | 0 | 0.1% | 22,313 |
| 2004 | 0 | 0.1% | 9,000 |
| 2005 | 0 | 0.1% | 9,026 |
| 2006 | 0 | 0.2% | 7,352 |
| 2007 | 0 | 0.2% | 9,500 |
| 2008 | 0 | 0.1% | 13,111 |
| 2009 | 0 | 0.1% | 11,000 |
| 2010 | 0 | 0.1% | 9,161 |
| 2011 | 0 | 0.1% | 10,056 |
| 2012 | 0 | 0.1% | 27,000 |
| 2013 | 0 | 0.0% | — |
| 2014 | 0 | 0.1% | 24,619 |
| 2015 | 0 | 0.1% | 10,556 |
| 2016 | 0 | 0.1% | 13,500 |
| 2017 | 0 | 0.1% | 10,857 |
| 2018 | 0 | 0.1% | 10,611 |
| 2019 | 0 | 0.2% | 11,143 |
| 2020 | 0 | 0.0% | 12,750 |
| 2021 | 0.2 | 1.0% | 10,000 |
| 2022 | 0 | 0.1% | 11,714 |
| 2023 | 0 | 0.1% | 11,000 |
| 2024 | 0 | 0.0% | — |
| 2025 | 0 | 0.1% | 12,050 |
Generators
EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
| Gen ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| 1 | Petroleum Liquids | IC | 2.5 | 2.5 | Apr 1968 | Operating | — | coming soon |
Owner / operator
Operator: Rock Rapids Municipal Utility. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Rock Rapids Municipal Utility | 100.0% | 3 MW |
Nearby plants
Within 80 km.
| Minwind | 4 MW | 17.8 km |
| Rock County Wind Fuel, LLC | 5 MW | 24.8 km |
| Luverne | 10 MW | 25.2 km |
| Walleye Wind | 110 MW | 29.3 km |
| Minwind 3-9 | retired | 29.4 km |
| Adrian | 2 MW | 29.9 km |