Hecate Energy Longhorn Solar LLC
Hecate Energy Longhorn Solar LLC is a 650 MW solar farm in Jack County, Texas, operated by Repsol Renewables NA. EIA-860M lists 1 generating unit here, inside ERCOT. Its unit entered service in 2026.
As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m
- Nameplate capacity
- 650 MW
- 650 MW net summer
- Generating units
- 1
- In service
- 2026
- EIA plant ID
- 68839
Where it is
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- County
- Jack County, Texas
- Coordinates
- 33.0442, -98.3405
- Balancing authority
- ERCO
- Sector
- IPP Non-CHP
Units, technology and status
- Operator of record
- Repsol Renewables NA
- Primary energy source
- Solar
- Technologies
- Solar Photovoltaic
- Status
- Operating
Hecate Energy Longhorn Solar LLC: FAQ
- Where is Hecate Energy Longhorn Solar LLC?
- In Jack County, Texas (TX). The map on this page is placed at the coordinates EIA files for the plant, which locate the site rather than any individual unit.
- How big is Hecate Energy Longhorn Solar LLC?
- 650 MW of nameplate capacity across 1 unit, as of the EIA-860M release for 2026-07.
- Who owns Hecate Energy Longhorn Solar LLC?
- EIA-860M names Repsol Renewables NA as the reporting entity. That is the operator of record on the survey, which is not always the ultimate owner.
- Is Hecate Energy Longhorn Solar LLC still running?
- EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.