A B Brown
A B Brown is a 647 MW natural gas power plant in Posey County, Indiana, operated by Southern Indiana Gas & Elec Co. EIA-860M lists 4 generating units here, inside MISO. Its units entered service between 1991 and 2025.
As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m
- Nameplate capacity
- 647.4 MW
- 597.9 MW net summer
- Generating units
- 4
- In service
- 1991–2025
- EIA plant ID
- 6137
Where it is
Loading map…
- County
- Posey County, Indiana
- Coordinates
- 37.9053, -87.715
- Balancing authority
- MISO
- Sector
- Electric Utility
Units, technology and status
- Operator of record
- Southern Indiana Gas & Elec Co
- Primary energy source
- Natural gas
- Technologies
- Natural Gas Fired Combustion Turbine
- Status
- Operating
A B Brown: FAQ
- Where is A B Brown?
- In Posey County, Indiana (IN). The map on this page is placed at the coordinates EIA files for the plant, which locate the site rather than any individual unit.
- How big is A B Brown?
- 647 MW of nameplate capacity across 4 units, as of the EIA-860M release for 2026-07.
- Who owns A B Brown?
- EIA-860M names Southern Indiana Gas & Elec Co as the reporting entity. That is the operator of record on the survey, which is not always the ultimate owner.
- Is this the same as A B Brown LLC?
- Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Southern Indiana Gas & Elec Co here — not the project company that holds the asset. Project companies are commonly registered as an LLC carrying the plant's name, so a search for "A B Brown LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
- Is A B Brown still running?
- EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.