Quarter Ranch Solar — Plant Summary
- EIA Plant ID
- 67078
- Capacity
- 154.1 MW
- Primary Fuel
- Solar
- Technology
- Solar Photovoltaic
- Status
- Planned
- Location
- Webb, TX
- Operating Since
- —
- Generators
- 1
- Operator
- Gransolar Texas Three, LLC
- Parent Company
- —
- Balancing Authority
- Electric Reliability Council of Texas, Inc.
- ISO/RTO
- ERCOT
- NERC Region
- TRE
Quarter Ranch Solar
PlannedSolarGEM: pre-construction
Ranked #183 of 351 Solar plants in TX#471 of 7447 nationally
154.1 MW Solar planned in Webb, TX — Electric Reliability Council of Texas, Inc.
EIAGEM
154.1 MW
Nameplate Capacity
1
Generators
unit
Solar Photovoltaic
Technology
Planned: —
Planned Operation
Location
Coordinates
27.3011, -99.4304
County
Webb, TX
Nearby Plants
- Bravo ESSBESS200 MW · 2.6 km
- Seven Flags BESS LLCBESS100 MW · 17.3 km
- Reloj del Sol Wind FarmWind209.4 MW · 24.8 km
Ownership & Operator
Owner data does not fully agree across sources.
EIA typically reports the operating utility, while GEM resolves to the financial owner or parent corporation. Both can be correct.
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Gransolar Texas Three, LLC | Gransolar Group (GRS) | — |
| Owner(s) | Gransolar Texas Three, LLC | Gransolar Group (GRS) | — |
| Status | Planned | pre-construction | — |
Ownership Chain
GEM identifies the owner as Gransolar Group (GRS)
This entity is not yet in the GEM ownership database — chain unavailable.
About
Quarter Ranch Solar is a 154.1 MW solar photovoltaic power plant located in Webb County, Texas. The plant is owned and operated by Gransolar Texas Three, LLC. It utilizes fixed-tilt solar tracking technology. The plant consists of a single generator and its primary fuel source is the sun.
Quarter Ranch Solar operates within the Electric Reliability Council of Texas (ERCOT) balancing authority. It is located in the TRE NERC region. The plant ranks as the 137th largest of 192 power plants in Texas, and 337th largest of 639 plants nationally.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
TRE
Balancing Authority
Electric Reliability Council of Texas, Inc.
Grid Voltage
345 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Generation
No generation data available for this plant.
Financial Data
No financial data available for this plant.
Pricing & Market Data
HIGH confidencePoint of Interconnection
Nearest Substation
Rio Brava Substation · 138 kV
Substation Distance
< 10 km
Operator
American Electric Power
Coord Source
OSM spatial
Market Position
ISO/RTO Market
ERCOT
LMP Node
—
Pricing Hub
HB_SOUTH
Node Source
OSM spatial match
Substation identified. Node ID not yet resolved against ISO roster.
Molina SubstationSubstation
News & Articles (10)Beta
Deals·ppa
TotalEnergies Signs 1 GW, 15-Year Solar Deal With Google To Power Texas Data Centers
TotalEnergies and Google Finalize 1 GW Solar Agreement Supplying 28 TWh From Two Texas Projects Set to Begin Construction in 2026.
TotalEnergies (seller)Google (buyer)
SolarQuarter·4 weeks ago
Deals·ppa
Lightsource bp And Toyota Partner On Jones City 2 Solar Farm To Boost Renewable Energy In Texas
Lightsource bp and Toyota Motor North America have finalized a virtual power purchase agreement (VPPA) for electricity from the 231MW Jones...
Lightsource bp (seller)Toyota Motor North America (buyer)
SolarQuarter·2 months ago
Industry·capacity addition
US solar installations jump 49% in third quarter, report says
The U.S. solar industry installed 11.7 gigawatts of new solar capacity in the third quarter, a jump of 49% sequentially, a study by the...
Reuters·3 months ago
Industry·capacity addition
US added 2 GW of solar in September, putting 2025 ahead of 2024 for new solar generation
Solar accounted for three-quarters of new generation installed so far this year, followed by wind at 13% and gas at 11%.
Utility Dive·3 months ago
Last updated 2026-03-14
View all 10 articles