Lake CatherineRetirement planned
Hot Spring County, Arkansas · EIA plant ID 170 · Operator: Entergy Arkansas Inc
Nameplate553MWSummer 522 MW
Generators1in service
Net generation336GWh12 mo to Dec 2025
Capacity factor7%gas/coal/oil units, summer MW
Heat rate11,698Btu/kWhfossil units, electric fuel, HHV
First online1970Runs as peaking
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) |
|---|---|---|---|
| 2001 | 1,454.4 | 22.3% | 11,095 |
| 2002 | 1,182.8 | 19.6% | 10,859 |
| 2003 | 471.6 | 7.3% | 11,701 |
| 2004 | 138.1 | 2.1% | 13,193 |
| 2005 | 195.5 | 3.0% | 11,911 |
| 2006 | 19.4 | 0.3% | 17,433 |
| 2007 | 29.2 | 0.4% | 14,444 |
| 2008 | 117.8 | 1.9% | 13,043 |
| 2009 | 132.2 | 2.1% | 11,793 |
| 2010 | 134.4 | 2.1% | 13,824 |
| 2011 | 105.4 | 1.7% | 14,242 |
| 2012 | 613 | 9.8% | 11,731 |
| 2013 | 477.8 | 7.9% | 12,470 |
| 2014 | 90.7 | 2.0% | 11,292 |
| 2015 | 159.6 | 3.5% | 12,295 |
| 2016 | 332.2 | 7.3% | 11,635 |
| 2017 | 93.6 | 2.0% | 13,857 |
| 2018 | 289.1 | 6.3% | 12,103 |
| 2019 | 127.5 | 2.8% | 13,327 |
| 2020 | 477.6 | 10.4% | 11,032 |
| 2021 | 196.2 | 4.3% | 11,648 |
| 2022 | 210.1 | 4.6% | 11,309 |
| 2023 | 169.1 | 3.7% | 10,821 |
| 2024 | 299.6 | 6.5% | 10,908 |
| 2025 | 336.2 | 7.3% | 11,698 |
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 |
|---|---|---|---|---|---|---|---|---|
| 4 | Natural Gas Steam Turbine | ST | 552.5 | 522 | Apr 1970 | Operating · retirement planned | Dec 2027 | coming soon |
| 1 | Natural Gas Steam Turbine | ST | 40 | 47 | Apr 1950 | Retired Dec 2013 | — | coming soon |
| 2 | Natural Gas Steam Turbine | ST | 40 | 45 | Aug 1950 | Retired Dec 2013 | — | coming soon |
| 3 | Natural Gas Steam Turbine | ST | 119.5 | 96 | Apr 1953 | Retired Dec 2013 | — | coming soon |
Owner / operator
Operator: Entergy Arkansas Inc. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Entergy Arkansas Inc | 100.0% | 553 MW |
Nearby plants
Within 80 km.
| Ironwood Power Station | — | 0.1 km |
| Remmel | 9 MW | 1.3 km |
| Magnet Cove | 746 MW | 6.7 km |
| Carpenter | 56 MW | 11.2 km |
| Hot Spring Generating Facility | 715 MW | 15.5 km |
| Hot Springs 2020 | 1 MW | 26.6 km |