Plant 31 Paper Mill
Wood biomass and natural gas power plant in Ouachita Parish, Louisiana. 84.2 MW of nameplate capacity across 3 generators, operated by Graphic Packaging International.
Also known as EIA plant 50028
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 84.2 MWWood biomass 45.0 · Natural gas 39.2
- Generators
- 3 operatingEIA-860M, August 2026
- Operating since
- January 1964First generator online
- Operator
- Graphic Packaging InternationalEIA operator ID 16064
- Grid
- MISOBalancing authority MISO
- Price nodes
- None linkedNo verified ISO node
- Location
- Ouachita Parish, LA32.4868, −92.1496
- EIA plant ID
- 50028EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Plant 31 Paper Mill produces
Free · EIA-923Net generation, 2025
515 GWh
514,804 MWh, final
Capacity factor, 2025
Not reported
2024: 70.7%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2017 to 2025
490.9–613.7
GWh a year. Low 2023, high 2019
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 356,749 | Not reported | 12 of 12 |
| 2001 | 323,353 | Not reported | 12 of 12 |
| 2002 | 336,974 | Not reported | 12 of 12 |
| 2003 | 296,225 | Not reported | 10 of 12 |
| 2004 | Not reported | Not reported | 0 of 12 |
| 2005 | Not reported | Not reported | 0 of 12 |
| 2006 | 313,119 | Not reported | 12 of 12 |
| 2007 | 316,838 | Not reported | 12 of 12 |
| 2008 | 322,454 | Not reported | 12 of 12 |
| 2009 | 298,951 | Not reported | 12 of 12 |
| 2010 | 320,254 | 58.0% | 12 of 12 |
| 2011 | 291,480 | Not reported | 12 of 12 |
| 2012 | 291,600 | 73.8% | 12 of 12 |
| 2013 | 300,532 | 76.2% | 12 of 12 |
| 2014 | 266,559 | 67.6% | 12 of 12 |
| 2015 | Not reported | Not reported | 0 of 12 |
| 2016 | 534,178 | Not reported | 11 of 12 |
| 2017 | 598,602 | 81.2% | 12 of 12 |
| 2018 | 600,966 | 81.5% | 12 of 12 |
| 2019 | 613,743 | 83.2% | 12 of 12 |
| 2020 | 575,725 | 77.8% | 12 of 12 |
| 2021 | 546,072 | 74.0% | 12 of 12 |
| 2022 | 604,366 | 81.9% | 12 of 12 |
| 2023 | 490,915 | 66.6% | 12 of 12 |
| 2024 | 522,982 | 70.7% | 12 of 12 |
| 2025 | 514,804 | Not reported | 12 of 12 |
| 2026 (provisional, partial year) | Not reported | Not reported | 0 of 7 |
* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.
Power prices and basis
Free accountNo verified ISO price node is linked to this plant, or its price history could not load.
Emissions
Free · EPA CAMPDNo EPA emissions units are linked to this plant.
Water use
Free · EIA-923 cooling, USGSNo EIA cooling-water record for this plant in 2024.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| GEN5 | Wood/Wood Waste Biomass | 25.0 | January 1964 |
| GEN6 | Wood/Wood Waste Biomass | 20.0 | January 1977 |
| GEN7 | Natural Gas Fired Combustion Turbine | 39.2 | February 2016 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists Graphic Packaging International as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
Generation potential vs reported
Monthly potential at seasonal net capability, next to EIA-923 output. Shows how much of the plant's capability was used.
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Questions about Plant 31 Paper Mill
How much power does Plant 31 Paper Mill produce?
Plant 31 Paper Mill reported 514,804 MWh (515 GWh) of net generation in 2025.
Where is Plant 31 Paper Mill?
Plant 31 Paper Mill is in Ouachita Parish, Louisiana, at 32.4868, −92.1496. It is in the Midcontinent Independent Transmission System Operator, Inc.. balancing area (MISO).
Who operates Plant 31 Paper Mill?
EIA-860M for August 2026 lists Graphic Packaging International as the operator (EIA operator ID 16064). The operator is not always the owner.
Is Plant 31 Paper Mill a wood biomass or a natural gas plant?
Both. Wood biomass capacity totals 45 MW and natural gas capacity totals 39.2 MW.
When did Plant 31 Paper Mill start operating?
Its first generator began operating in January 1964, according to EIA-860M.
Sources
- EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
- EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page