Arsenal HillRetirement planned
Caddo County, Louisiana · EIA plant ID 1416 · Operator: Southwestern Electric Power Co
Nameplate125MWSummer 110 MW
Generators1in service
Net generation120GWh12 mo to Dec 2025
Capacity factor12%gas/coal/oil units, summer MW
Heat rate12,342Btu/kWhfossil units, electric fuel, HHV
First online1960Runs 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 | 137.6 | 14.3% | 12,720 |
| 2002 | 107 | 11.1% | 13,230 |
| 2003 | 88.2 | 9.2% | 14,191 |
| 2004 | 76.6 | 7.9% | 15,696 |
| 2005 | 110.4 | 11.5% | 14,396 |
| 2006 | 98.3 | 10.2% | 15,666 |
| 2007 | 69.8 | 7.2% | 17,720 |
| 2008 | 106.1 | 11.0% | 15,663 |
| 2009 | 29.3 | 2.9% | 13,750 |
| 2010 | 58.9 | 5.8% | 16,170 |
| 2011 | 58.4 | 5.8% | 15,075 |
| 2012 | 40.1 | 3.9% | 17,249 |
| 2013 | 14.4 | 1.4% | 16,473 |
| 2014 | 30 | 2.9% | 15,954 |
| 2015 | 27.4 | 2.7% | 13,034 |
| 2016 | 30.8 | 3.0% | 13,277 |
| 2017 | 23.7 | 2.3% | 13,234 |
| 2018 | 25.5 | 2.5% | 12,802 |
| 2019 | 61.2 | 6.3% | 12,389 |
| 2020 | 23.6 | 2.5% | 13,135 |
| 2021 | 44.5 | 4.6% | 12,595 |
| 2022 | 85.3 | 8.9% | 12,735 |
| 2023 | 177.8 | 18.4% | 12,421 |
| 2024 | 192.1 | 19.9% | 12,165 |
| 2025 | 120.1 | 12.5% | 12,342 |
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 |
|---|---|---|---|---|---|---|---|---|
| 5 | Natural Gas Steam Turbine | ST | 125 | 110 | Mar 1960 | Operating · retirement planned | May 2029 | coming soon |
| 6 | Natural Gas Fired Combined Cycle | CC | 450 | 454.4 | planned Jun 2010 | not_current | — | coming soon |
Owner / operator
Operator: Southwestern Electric Power Co. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Southwestern Electric Power Co | 100.0% | 125 MW |
Nearby plants
Within 80 km.
| J Lamar Stall Unit | 624 MW | 0.2 km |
| Lieberman | 228 MW | 27.9 km |
| Rocking R Solar, LLC | 73 MW | 42.3 km |
| Mansfield Mill | 172 MW | 44.5 km |
| Dolet Hills | retired | 57.1 km |
| Snider Industries | 5 MW | 57.8 km |