Lone StarRetired
Morris County, Texas · EIA plant ID 3477 · Operator: Southwestern Electric Power Co
×40 MW natural gas retired since 2020 (latest May 2020)
Nameplate—MWSummer — MW
Generators0in service
Net generation—GWh12 mo
Capacity factor—no 923 generation in the last 12 months
Heat rate—Btu/kWhfossil units, electric fuel, HHV
First online—
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), primary-fuel 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 | 15.1 | 3.4% | 12,858 |
| 2002 | 8.6 | 2.0% | 13,169 |
| 2003 | 0 | 0.0% | — |
| 2004 | 0.2 | 0.0% | 14,071 |
| 2005 | 19.6 | 4.5% | 13,229 |
| 2006 | 21 | 4.8% | 13,193 |
| 2007 | 7.3 | 1.7% | 13,769 |
| 2008 | 1.5 | 0.3% | 24,134 |
| 2009 | 1.7 | 0.4% | 14,481 |
| 2010 | 17.1 | 3.9% | 14,711 |
| 2011 | 45.1 | 10.3% | 13,639 |
| 2012 | 23.7 | 5.4% | 14,932 |
| 2013 | 2 | 0.5% | 15,725 |
| 2014 | 1.6 | 0.4% | 14,806 |
| 2015 | 5.5 | 1.3% | 12,104 |
| 2016 | 8.5 | 1.9% | 14,968 |
| 2017 | 1.1 | 0.3% | 14,501 |
| 2018 | 5.9 | 1.4% | 16,106 |
| 2019 | 11.5 | 2.6% | 15,164 |
| 2020 | 0 | 0.0% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 1 | Natural Gas Steam Turbine | ST | 40 | 50 | Mar 1954 | Retired May 2020 | — | 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).
Nearby plants
Within 80 km.
| Hecate Energy Upshur Rural LLC | 3 MW | 8.7 km |
| Wilkes | 882 MW | 18.2 km |
| Welsh | 1,116 MW | 18.5 km |
| Naples Power Plant | — | 33.2 km |
| Snider Industries | 5 MW | 50.5 km |
| Eastman Cogeneration Facility | 468 MW | 52.7 km |