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316 MW Batteries (180 MW) + Solar Photovoltaic (136 MW) operating in Starr, TX — Electric Reliability Council of Texas, Inc.
316 MW
Nameplate Capacity
2
Generators
units
Hybrid (2)
Technology
Batteries + Solar Photovoltaic
2024
Operating Since
Coordinates
26.5234, -99.0171
County
Starr, TX
Nearby Plants
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 | Lightsource Renewable Energy Asset Management, LLC | Lightsource BP | — |
| Owner(s) | Starr Solar Ranch LLC | Lightsource BP | — |
| Status | Operating | operating | — |
GEM identifies the owner as Lightsource BP
This entity is not yet in the GEM ownership database — chain unavailable.
Starr Solar Ranch is a 316 MW hybrid power plant located in Starr County, Texas. The facility, which began operating in 2024, is owned and operated by Lightsource Renewable Energy Asset Management, LLC. The plant utilizes both solar photovoltaic technology and batteries, with single-axis tracking to maximize solar capture. It consists of two generators and its primary fuel source is listed as MWH (megawatt hours).
The plant operates within the Electric Reliability Council of Texas, Inc. (ERCOT) balancing authority. In its latest year of operation, Starr Solar Ranch generated 272,169 MWh, achieving a capacity factor of 9.8%. Starr Solar Ranch is ranked as the 44th largest power plant out of 224 in Texas, and 131st nationally out of 514. Financial data is available for the plant via LBNL, indicating that it is tracked in solar energy finance research.
Generated from EIA, GEM, and public data sources
ISO/RTO
ERCOT
Market
ISO/RTO Member
NERC Region
TRE — Texas Reliability Entity
Balancing Authority
Electric Reliability Council of Texas, Inc. (ERCO)
Grid Voltage
138.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
14.2K MWh
Net Discharge
272.2K MWh
Annual Net Energy
9.8%
Capacity Factor
Positive values indicate net discharge (generation exceeds station load). Negative values indicate net charging. Pure battery storage plants are typically net negative due to round-trip efficiency losses.
Data from 2024
$35.1/MWh
LCOE
Point of Interconnection
Nearest Substation
Roma Switching Station · 138 kV
Substation Distance
0.233 km
Operator
American Electric Power
Coord Source
OSM spatial
Market Position
ISO/RTO Market
ERCOT
LMP Node
STAR_SLR_RN
Pricing Hub
HB_SOUTH
Alt. Hub / Zone
LZ_SOUTH
Location Type
Resource Node
Node Source
Curated node match
Last updated 2026-03-26
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