A B Brown
Posey County, Indiana · EIA plant ID 6137 · Operator: Southern Indiana Gas & Elec Co
×530 MW coal retired since 2020 (latest Oct 2023)
Nameplate647MWSummer 598 MW
Generators4in service
Net generation743GWh12 mo to Aug 2026
Capacity factor14%gas/coal/oil units, summer MW
Heat rate11,224Btu/kWhfossil units, electric fuel, HHV
First online1991Runs 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 | 3,202.2 | — | — |
| 2002 | 3,194.7 | — | — |
| 2003 | 2,993.2 | 51.8% | 10,059 |
| 2004 | 2,693.6 | 46.5% | 10,125 |
| 2005 | 3,572.4 | 61.8% | 10,135 |
| 2006 | 3,409.2 | 59.9% | 10,714 |
| 2007 | 3,326.5 | 58.4% | 11,039 |
| 2008 | 3,343.3 | 58.6% | 10,991 |
| 2009 | 2,110.4 | 37.1% | 11,700 |
| 2010 | 2,125.8 | 37.3% | 11,481 |
| 2011 | 2,120.8 | 37.3% | 11,350 |
| 2012 | 2,369.9 | 41.5% | 11,288 |
| 2013 | 2,470.2 | 43.4% | 11,208 |
| 2014 | 3,064 | 53.8% | 10,948 |
| 2015 | 2,491.9 | 43.8% | 11,071 |
| 2016 | 2,135.1 | 37.4% | 11,310 |
| 2017 | 1,942.6 | 34.1% | 11,309 |
| 2018 | 2,444.5 | 42.9% | 11,101 |
| 2019 | 2,470 | 43.4% | 11,130 |
| 2020 | 2,075.6 | 36.4% | 11,474 |
| 2021 | 2,751.6 | 48.3% | 11,245 |
| 2022 | 3,013 | 53.3% | 11,074 |
| 2023 | 1,783.2 | 38.9% | 11,822 |
| 2024 | 49.7 | 3.5% | 13,230 |
| 2025 | 497.4 | 14.2% | 11,651 |
Fuel capability
Gas-fired turbines (CT/GT/CA/CS) that can also burn liquid fuel. EIA-860 Schedule 3 for capability, EIA-923 for actual burn.
StatusLikely still dual fuel
Liquid fuel burned · 36 mo3,321 MMBtu
Last month with liquid burnSep 2025
Switch while operatingYes
Net summer MW on gas80
Net summer MW on oil80
Time gas → oilup to 24 h (EIA 24H)
Time oil → gasup to 24 h (EIA 24H)
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 |
|---|---|---|---|---|---|---|---|---|
| 4 | Natural Gas Fired Combustion Turbine | GT | 88.2 | 80 | Jun 1991 | Operating | — | coming soon |
| 5 | Natural Gas Fired Combustion Turbine | GT | 88.2 | 80 | May 2002 | Operating | — | coming soon |
| 6 | Natural Gas Fired Combustion Turbine | GT | 235.5 | 219.3 | Aug 2025 | Operating | — | coming soon |
| 7 | Natural Gas Fired Combustion Turbine | GT | 235.5 | 218.6 | May 2025 | Operating | — | coming soon |
| 1 | Conventional Steam Coal | ST | 265.2 | 245 | Mar 1979 | Retired Oct 2023 | — | coming soon |
| 2 | Conventional Steam Coal | ST | 265.2 | 240 | Feb 1986 | Retired Oct 2023 | — | coming soon |
Owner / operator
Operator: Southern Indiana Gas & Elec Co. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Southern Indiana Gas & Elec Co | 100.0% | 647 MW |
Nearby plants
Within 80 km.
| Posey Solar | 191 MW | 2.7 km |
| Henderson County Solar | — | 14.3 km |
| SABIC Innovative Plastics Mt. Vernon | 108 MW | 18.5 km |
| Oak Hill Solar Array | 2 MW | 18.8 km |
| Sebree Solar II | 150 MW | 25.4 km |
| Patoka Solar | — | 26.7 km |