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515 MW Solar operating in Webb, TX — Electric Reliability Council of Texas, Inc.
515 MW
Nameplate Capacity
1
Generators
unit
Solar Photovoltaic
Technology
2025
Operating Since
Coordinates
27.8592, -99.1617
County
Webb, TX
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Repsol Renewables NA | Repsol Renewables NA | — |
| Owner(s) | Repsol Renewables NA | Repsol Renewables NA | — |
| Status | Operating | operating | — |
GEM identifies the owner as Repsol Renewables NA
This entity is not yet in the GEM ownership database — chain unavailable.
Hecate Energy Outpost Solar LLC is a 515 MW solar photovoltaic power plant located in Webb County, Texas. The plant, which began operating in 2025, utilizes fixed-tilt solar tracking technology. It has one generator and is owned and operated by Repsol Renewables NA. The plant's primary fuel source is the sun.
The facility operates within the Electric Reliability Council of Texas (ERCOT) balancing authority and the TRE NERC region. Hecate Energy Outpost Solar ranks as the 6th largest solar plant in Texas out of 192, and 16th nationally out of 639.
Generated from EIA, GEM, and public data sources
ISO/RTO
ERCOT
Market
ISO/RTO Member
NERC Region
TRE — Texas Reliability Entity
Balancing Authority
60.9K MWh
Latest Month
—
Annual Generation
—
Capacity Factor
2023
$1,543/kW
Est. Construction Cost
Total estimated cost: $794.6M
Market Position
ISO/RTO Market
ERCOT
LMP Node
OUTP_SLR_RN
Pricing Hub
HB_SOUTH
Alt. Hub / Zone
LZ_SOUTH
Location Type
Resource Node
Node Source
Curated node match
No news articles linked yet for this plant.
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Electric Reliability Council of Texas, Inc. (ERCO)
Grid Voltage
345.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Top 10 solar states
Data tables and metrics from the powerplantsinfo.org database.