Plant 31 Paper Mill
Plant 31 Paper Mill is a 84 MW biomass power plant in Ouachita County, Louisiana, operated by Graphic Packaging International. EIA-860M lists 3 generating units here, inside MISO. Its units entered service between 1964 and 2016.
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
- 84.2 MW
- 77 MW net summer
- Generating units
- 3
- In service
- 1964–2016
- EIA plant ID
- 50028
Where it is
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- County
- Ouachita County, Louisiana
- Coordinates
- 32.4868, -92.1496
- Balancing authority
- MISO
- Sector
- Industrial CHP
Units, technology and status
- Operator of record
- Graphic Packaging International
- Primary energy source
- Biomass
- Technologies
- Natural Gas Fired Combustion Turbine, Wood/Wood Waste Biomass
- Status
- Operating
This site runs on more than one energy source. EIA-860M capacity splits: Biomass 45 MW, Natural gas 39 MW. It is filed here under Biomass, the source with the most capacity.
Every plant Graphic Packaging International reports to EIA →
Plant 31 Paper Mill: FAQ
- Where is Plant 31 Paper Mill?
- In Ouachita County, Louisiana (LA). 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 Plant 31 Paper Mill?
- 84 MW of nameplate capacity across 3 units, as of the EIA-860M release for 2026-07.
- Who owns Plant 31 Paper Mill?
- EIA-860M names Graphic Packaging International 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 Plant 31 Paper Mill LLC?
- Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Graphic Packaging International 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 "Plant 31 Paper Mill LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
- Is Plant 31 Paper Mill still running?
- EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.