HarringtonRetirement planned
Potter County, Texas · EIA plant ID 6193 · Operator: Southwestern Public Service Co
Nameplate1,080MWSummer 1,018 MW
Generators3in service
Net generation2,286GWh12 mo to Aug 2026
Capacity factor26%gas/coal/oil units, summer MW
Heat rate10,826Btu/kWhfossil units, electric fuel, HHV
First online1976Runs as intermediate
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) |
|---|---|---|---|
| 2001 | 7,914.2 | 84.8% | 10,161 |
| 2002 | 7,831.5 | 83.9% | 10,041 |
| 2003 | 8,052.4 | 86.2% | 10,185 |
| 2004 | 8,272.2 | 88.3% | 10,275 |
| 2005 | 7,458.7 | 79.9% | 10,298 |
| 2006 | 7,623.2 | 83.6% | 9,656 |
| 2007 | 7,307.7 | 80.1% | 10,322 |
| 2008 | 7,733.2 | 84.6% | 10,247 |
| 2009 | 7,485.3 | 82.1% | 10,254 |
| 2010 | 6,591.3 | 73.9% | 10,392 |
| 2011 | 5,749.8 | 64.5% | 10,402 |
| 2012 | 6,176 | 69.1% | 10,513 |
| 2013 | 5,523.5 | 61.9% | 10,552 |
| 2014 | 5,730.3 | 64.3% | 10,565 |
| 2015 | 5,753.9 | 64.5% | 10,639 |
| 2016 | 5,022.8 | 56.2% | 10,762 |
| 2017 | 4,626.4 | 51.9% | 10,653 |
| 2018 | 4,783.7 | 53.6% | 10,598 |
| 2019 | 3,735.2 | 41.9% | 10,840 |
| 2020 | 3,345.2 | 37.4% | 11,046 |
| 2021 | 4,880.9 | 54.7% | 10,758 |
| 2022 | 4,408.4 | 49.4% | 10,767 |
| 2023 | 3,211.3 | 36.0% | 10,969 |
| 2024 | 2,233.9 | 25.0% | 11,622 |
| 2025 | 2,018.1 | 22.6% | 11,070 |
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 | 360 | 339 | Jan 1976 | Operating · retirement planned | Dec 2036 | coming soon |
| 2 | Natural Gas Steam Turbine | ST | 360 | 339 | Jan 1978 | Operating · retirement planned | Dec 2038 | coming soon |
| 3 | Natural Gas Steam Turbine | ST | 360 | 340 | Jan 1980 | Operating · retirement planned | Dec 2040 | coming soon |
Owner / operator
Operator: Southwestern Public Service Co. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Southwestern Public Service Co | 100.0% | 1,080 MW |
Nearby plants
Within 80 km.
| Nichols | 475 MW | 1.6 km |
| Project Matador Gas Plant (PMG) | — | 16.3 km |
| Project Matador Nuclear | — | 16.3 km |
| Majestic II Wind | 80 MW | 18.1 km |
| High Plains Wind Power LLC | retired | 19.7 km |
| Pantex | 12 MW | 19.7 km |