RockportRetirement planned
Spencer County, Indiana · EIA plant ID 6166 · Operator: Indiana Michigan Power Co
Nameplate2,600MWSummer 2,600 MW
Generators2in service
Net generation9,010GWh12 mo to Aug 2026
Capacity factor40%gas/coal/oil units, summer MW
Heat rate9,917Btu/kWhfossil units, electric fuel, HHV
First online1984Runs as intermediate
The 12-month figures include preliminary EIA-923 months, which EIA revises. Final data runs through Dec 2025.
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 | 17,570.4 | 77.1% | 10,112 |
| 2002 | 16,643.3 | 73.1% | 9,477 |
| 2003 | 17,977.8 | 78.9% | 9,672 |
| 2004 | 17,034 | 74.6% | 9,652 |
| 2005 | 17,942.3 | 78.8% | 9,631 |
| 2006 | 20,356.9 | 89.4% | 9,578 |
| 2007 | 16,114.3 | 70.5% | 9,679 |
| 2008 | 19,900.7 | 86.8% | 9,704 |
| 2009 | 18,725.6 | 81.9% | 9,743 |
| 2010 | 17,631.7 | 77.1% | 9,678 |
| 2011 | 16,391.3 | 72.0% | 9,770 |
| 2012 | 18,779.6 | 82.2% | 9,772 |
| 2013 | 15,807.8 | 69.4% | 9,867 |
| 2014 | 16,717.1 | 73.4% | 9,803 |
| 2015 | 12,442.5 | 54.6% | 10,113 |
| 2016 | 11,557.9 | 50.6% | 10,223 |
| 2017 | 10,923.4 | 48.0% | 9,948 |
| 2018 | 11,894.1 | 52.2% | 10,095 |
| 2019 | 8,146.9 | 35.8% | 10,284 |
| 2020 | 4,038.8 | 17.7% | 10,595 |
| 2021 | 4,802.2 | 21.1% | 10,688 |
| 2022 | 4,500.5 | 19.8% | 14,072 |
| 2023 | 2,493.7 | 10.9% | 12,502 |
| 2024 | 5,060.8 | 22.2% | 11,229 |
| 2025 | 9,635.2 | 42.3% | 9,880 |
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 | Conventional Steam Coal | ST | 1,300 | 1,300 | Dec 1984 | Operating · retirement planned | Dec 2028 | coming soon |
| 2 | Conventional Steam Coal | ST | 1,300 | 1,300 | Dec 1989 | Operating · retirement planned | Dec 2028 | coming soon |
Owner / operator
Operator: Indiana Michigan Power Co. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Indiana Michigan Power Co | 100.0% | 2,600 MW |
Nearby plants
Within 80 km.
| Elmer Smith | retired | 14.8 km |
| Troy Solar | 50 MW | 23.7 km |
| Rustic Hills Solar I | — | 24.1 km |
| F B Culley | 369 MW | 25.5 km |
| Rustic Hills Solar II LLC | — | 25.5 km |
| Warrick | 823 MW | 26 km |