Hecate Energy Longhorn Solar LLC
Solar power plant · Jack County, Texas
Nameplate capacity
650 MW
Rank in Texas
#62
of 1,071 plants
In service since
2026
April 2026
Details
- Primary fuel
- Solar
- Technology
- Solar Photovoltaic
- Operator
- Repsol Renewables NA
- County
- Jack County
- Generating units
- 1
- Share of state capacity
- 0.32%
- Rank among solar plants in Texas
- #1 of 238
- EIA plant code
- 68839
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| RRPS | Solar Photovoltaic | 650 MW | 650 MW | 2026 | Operating |
Nameplate is the maximum rated output; summer capacity is what the unit can reliably deliver on a hot day, which is typically lower.
Similarly sized plants in Texas
| Capricorn Ridge Wind LLC | Wind | 663 MW |
| Colorado Bend Energy Center | Natural gas | 654 MW |
| Odyssey Energy Altura Cogen, LLC | Natural gas | 644 MW |
| Graham | Natural gas | 635 MW |
About this data
From EIA’s inventory of operable generators, May 2026 release. Capacity is nameplate — the maximum rated output of the equipment, not what the plant actually generates over a year, which depends on how often it runs. A 650 MW solar plant and a 650 MW nuclear plant have the same entry here and produce very different amounts of electricity.
“In service since” is the earliest in-service date among the units still listed, so a site rebuilt around newer equipment can read as younger than the site itself. All Texas power plants · What Texas actually generates