- Combustion
- Wind & solar
- Under construction
- Operating
- 10 · 100 · 1,000 MW
Map
- Combustion
- Wind & solar
- Under construction
- Operating
A B Brown: location and 1 exact-grade project within 15 mi. Basemap: Protomaps, © OpenStreetMap contributors, ODbL.
A B Brown
Power plant · Gas, combustion turbine
Key facts
Power plant · Gas, combustion turbineran 9% of 2025 Operating- Capacity
- Capacity: sourceEIA-860M · Open licenseMW
- Commissioned
- 1991
- Net generation, 2025
- 497,391 MWh
- Grid
- 138 kV to Southern Indiana Gas & Elec Co (MISO)
- Location
- Posey County, Indiana
- Operated by
- Southern Indiana Gas & Elec Co
Output
- Gas
- Coal
- Oil
Details
Who’s behind it
- Owner
- Centerpoint Energy
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- Technology
- Gas, combustion turbine source: “Natural Gas Fired Combustion Turbine”
- Age
- 35 years since 1991
- Unused energy
- 5,174 GWh 2025Unused energyA lead, not a guarantee: MW × hours × (1 − capacity factor) for the latest year (EIA-923), gas, coal and oil plants only. Air-permit run-hour caps, heat rate (cost to run) and capacity-market or reliability obligations can rule it out.
- Heat rate
- 11,651 Btu/kWh 2025
All 6 attributes from EIA-860M Preliminary Monthly Electric Generator Inventory
| Attribute | Value |
|---|---|
| EPA greenhouse gas reporting (GHGRP) |
|
| Fuel burned (MMBtu), 2025 | 5,794,951 |
| Capacity factor, 2025 | 0.088 |
| Heat rate (Btu/kWh), 2025 | 11,650.7 |
| Net generation (MWh), 2025 | 497,391.0 |
| Balancing authority code | MISO |
Retirement
EIA-860M September 2026StatusSome generators have retired; the rest of the plant is still in service. As of EIA-860M for September 2026.- Capacity retired
- 530.4 MW
- Generators retired
- 2
- Capacity still in service
- 647.4 MW
| Generator | Technology | Nameplate | State | Date |
|---|---|---|---|---|
| 1 | Conventional Steam Coal | 265.2 MW | Retired | October 2023 |
| 2 | Conventional Steam Coal | 265.2 MW | Retired | October 2023 |
Grid
EIA-860 2025Grid fieldsAs the plant reported them to EIA-860 for 2025 (Schedule 2).- Grid voltage at the plant
- 138 kV
- Transmission or distribution system owner
- Southern Indiana Gas & Elec Co
- Balancing authority
- Midcontinent Independent Transmission System Operator, Inc..
- NERC region
- RFC
Transmission lines within 15 mi (10)
Can the connection be reused?
A plant that retires usually leaves its substation, transmission connection and interconnection agreement behind, and those may be reusable by a new project at the same site. FERC Order No. 845 lets an interconnection customer use surplus interconnection service at an existing site, and some transmission providers' tariffs let a replacement resource take over a retiring unit's interconnection service, usually within a set time after the retirement. Whether any such right still exists here, who holds it and on what terms depends on the owner, the transmission provider and timing; this page does not establish any of that.
Ownership
2 companies2| Company | Role | Share | As of | Source |
|---|---|---|---|---|
| Southern Indiana Gas & Elec Co | Operator | EIA-860M | ||
| CENTERPOINT ENERGY | Owner | 100.0% | Dec 31, 2023 | EPA GHGRP |
Timeline
- Stated Units 1, 2 scheduled to retire, 530.4 MW · EIA-860M
- In service · EIA-860M
Sources
5 sourcesSources EIA-860M · LBNL · EIA · EIA-860M Preliminary Monthly Electric Generator Inventory · EPA Greenhouse Gas Reporting Program — facility register with parent-company shares (Envirofacts pub_dim_facility; FLIGHT)
Sources
- EIA-860M
- LBNLYin, Nait Belaid & Heleno (2026), Lawrence Berkeley National Laboratory, OEDI, CC BY 4.0: A Harmonized Geospatial Dataset of U.S. Transmission Lines: Linking FERC Form 1 and HIFLD, 1994-2024. Modified by Inframation: HIFLD-side fields only, names re-cased, coordinates rounded.
- EIASource: U.S. Energy Information Administration, Electricity bulk data (Form EIA-923 monthly plant series)
- EIA-860M Preliminary Monthly Electric Generator Inventory
- EPA Greenhouse Gas Reporting Program — facility register with parent-company shares (Envirofacts pub_dim_facility; FLIGHT)
Around this plant
Nearby
within 15 mi| Project | Kind | Away | MW |
|---|---|---|---|
| Henderson County Solar Under construction | Solar | 8.9 mi | 51.1 |
Sources EIA-860M