Coralville GT
Johnson County, Iowa · EIA plant ID 1079 · Operator: MidAmerican Energy Co
Nameplate72MWSummer 63 MW
Generators4in service
Net generation2GWh12 mo to Dec 2025
Capacity factor0%gas/coal/oil units, summer MW
Heat rate20,215Btu/kWhfossil units, electric fuel, HHV
First online1970Runs 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 | 3.5 | 0.6% | 15,589 |
| 2002 | -0.2 | -0.0% | — |
| 2003 | -0.4 | -0.1% | — |
| 2004 | -0 | -0.0% | — |
| 2005 | -0.5 | -0.1% | — |
| 2006 | 0.1 | 0.0% | — |
| 2007 | -0.2 | -0.0% | — |
| 2008 | -0.3 | -0.1% | — |
| 2009 | 0.9 | 0.1% | — |
| 2010 | 0.5 | 0.1% | — |
| 2011 | 0.5 | 0.1% | — |
| 2012 | 0.6 | 0.1% | — |
| 2013 | -0.5 | -0.1% | — |
| 2014 | -0.2 | -0.0% | — |
| 2015 | -0.8 | -0.1% | — |
| 2016 | 0.2 | 0.0% | — |
| 2017 | 0.7 | 0.1% | — |
| 2018 | 0.3 | 0.1% | — |
| 2019 | -0.7 | -0.1% | — |
| 2020 | -0 | -0.0% | — |
| 2021 | 3.2 | 0.5% | 20,768 |
| 2022 | 2.8 | 0.5% | 17,338 |
| 2023 | 1 | 0.2% | 26,327 |
| 2024 | 0.8 | 0.1% | 25,503 |
| 2025 | 2.5 | 0.4% | 20,215 |
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 | Natural Gas Fired Combustion Turbine | GT | 18 | 16.4 | Jun 1970 | Operating | — | coming soon |
| 2 | Natural Gas Fired Combustion Turbine | GT | 18 | 16.7 | Jun 1970 | Operating | — | coming soon |
| 3 | Natural Gas Fired Combustion Turbine | GT | 18 | 14.5 | Jun 1970 | Operating | — | coming soon |
| 4 | Natural Gas Fired Combustion Turbine | GT | 18 | 15.8 | Jun 1970 | Operating | — | coming soon |
Owner / operator
Operator: MidAmerican Energy Co. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| MidAmerican Energy Co | 100.0% | 72 MW |
Nearby plants
Within 80 km.
| University of Iowa Main Power Plant | 41 MW | 2.6 km |
| Oakdale Renewable Energy Plant | 3 MW | 4.9 km |
| Johnson County Hills Solar | 3 MW | 11.2 km |
| Farmers Electric Cooperative - Kalona | 6 MW | 18.5 km |
| West Liberty | 14 MW | 27.4 km |
| Kirkwood Wind Turbine | retired | 28.1 km |