Ouachita
Ouachita County, Louisiana · EIA plant ID 55467 · Operator: Entergy Louisiana LLC
Nameplate904MWSummer 719 MW
Generators6in service
Net generation4,430GWh12 mo to Aug 2026
Capacity factor70%gas/coal/oil units, summer MW
Heat rate7,378Btu/kWhfossil units, electric fuel, HHV
First online2002Runs as baseload
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) |
|---|---|---|---|
| 2002 | 831.6 | — | — |
| 2003 | 1,514.4 | 21.2% | 7,129 |
| 2004 | 349.1 | 4.9% | 7,111 |
| 2005 | 553.9 | 7.8% | 7,297 |
| 2006 | 1,284.8 | 18.0% | 7,322 |
| 2007 | 1,597.2 | 22.3% | 7,343 |
| 2008 | 1,402.8 | 19.6% | 7,399 |
| 2009 | 871.9 | 12.9% | 7,722 |
| 2010 | 1,129.3 | 16.7% | 7,764 |
| 2011 | 1,313.4 | 19.5% | 7,583 |
| 2012 | 1,658 | 24.5% | 7,459 |
| 2013 | 1,389.1 | 20.6% | 7,561 |
| 2014 | 3,640.6 | 56.8% | 7,346 |
| 2015 | 4,685.6 | 72.2% | 7,349 |
| 2016 | 3,903 | 58.6% | 7,238 |
| 2017 | 4,160.1 | 63.0% | 7,269 |
| 2018 | 4,009.9 | 62.2% | 7,278 |
| 2019 | 3,595.5 | 56.5% | 7,356 |
| 2020 | 3,506.4 | 55.5% | 7,315 |
| 2021 | 2,739.8 | 43.5% | 7,316 |
| 2022 | 4,239.1 | 66.5% | 7,227 |
| 2023 | 3,736 | 58.9% | 7,228 |
| 2024 | 4,898 | 77.2% | 7,198 |
| 2025 | 3,944.7 | 62.6% | 7,307 |
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 |
|---|---|---|---|---|---|---|---|---|
| CTG1 | Natural Gas Fired Combined Cycle | CT | 179.3 | — | Aug 2002 | Operating | — | coming soon |
| CTG2 | Natural Gas Fired Combined Cycle | CT | 179.3 | — | Aug 2002 | Operating | — | coming soon |
| CTG3 | Natural Gas Fired Combined Cycle | CT | 179.3 | — | Aug 2002 | Operating | — | coming soon |
| STG1 | Natural Gas Fired Combined Cycle | CA | 122 | 234 | Aug 2002 | Operating | — | coming soon |
| STG2 | Natural Gas Fired Combined Cycle | CA | 122 | 242.1 | Aug 2002 | Operating | — | coming soon |
| STG3 | Natural Gas Fired Combined Cycle | CA | 122 | 243.2 | Aug 2002 | Operating | — | coming soon |
Owner / operator
Operator: Entergy Louisiana LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Entergy Arkansas LLC | 66.7% | 603 MW |
| Entergy Louisiana LLC | 33.3% | 301 MW |
Nearby plants
Within 80 km.
| Sterlington | 59 MW | 1 km |
| Sterlington Solar | 49 MW | 1.5 km |
| NRG Sterlington Power | retired | 2.3 km |
| Perryville Power Station | 824 MW | 5 km |
| SR South Bastrop | — | 15.4 km |
| SR North Bastrop | — | 19.3 km |