Mars Solar — Plant Summary
- EIA Plant ID
- 63027
- Capacity
- 10 MW
- Primary Fuel
- Solar
- Technology
- Solar Photovoltaic
- Status
- Operating
- Location
- Webb, TX
- Operating Since
- 2019
- Generators
- 1
- Operator
- Sol Systems
- Parent Company
- —
- Annual Generation
- 20,515 MWh
- Capacity Factor
- 23.3%
- Balancing Authority
- Electric Reliability Council of Texas, Inc.
- ISO/RTO
- ERCOT
- NERC Region
- TRE
Mars Solar
OperatingSolar
Ranked #291 of 351 Solar plants in TX#2000 of 7447 nationally
10 MW Solar operating in Webb, TX — Electric Reliability Council of Texas, Inc.
EIAGEMWD
10 MW
Nameplate Capacity
1
Generators
unit
Solar Photovoltaic
Technology
2019
Operating Since
Location
Coordinates
27.4234, -98.8303
County
Webb, TX
Nearby Plants
- Javelina Wind Energy II, LLCWind200 MW · 9.3 km
- WhitetailWind92 MW · 17.4 km
- Javelina Wind Energy, LLCWind249.7 MW · 18.3 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Sol Systems | Sol Systems | — |
| Owner(s) | Sol Systems | — | — |
| Status | Operating | operating | — |
Ownership Chain
No GEM tracker match for this plant — ownership chain unavailable.
About
Mars Solar is a 10 MW solar photovoltaic power plant located in Webb County, Texas. The plant began operating in 2019 and has one generator. It is owned and operated by Sol Systems. The facility utilizes single-axis tracking to maximize solar energy capture. Mars Solar is interconnected to the Electric Reliability Council of Texas (ERCOT) grid and falls within the TRE NERC region.
In its most recent year of operation, Mars Solar generated 20,515 MWh of electricity, achieving a capacity factor of 23.3%. According to available data, the plant ranks 243rd out of 298 power plants in Texas and 1817th out of 7108 plants nationally. Financial data is available for Mars Solar from LBNL Solar.
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
12.47 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Generation
965 MWh
Latest Month
20.5K MWh
Annual Generation
23.3%
Capacity Factor
Jan 2022 – Dec 2024
Financial DataBeta
Source: LBNL Utility-Scale SolarHIGH
$41.3/MWh
LCOE (Levelized Cost)
$28.6/MWh
Energy Value
Pricing & Market Data
HIGH confidencePoint of Interconnection
Nearest Substation
Bruni 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.
Bruni SubstationSubstation
Bordas II SubstationSubstation
News & Articles (10)Beta
General
Factor This finance and project development roundup: ArcLight, Arevon, Aypa Power, Octopus, Sol Systems
ArcLight acquires stake in 5.4 GW of power projects, Arevon closes on $920M in financing, Aypa Power secures funding for Ontario energy storage, Octopus Australia breaks ground on a $900M project, and Sol Systems shares two solar milestones.
Power Engineering·1 weeks ago
Grid·capacity addition
PSEG Queen Creek Solar Farm in Arizona Begins Commercial Operation
19 megawatt (19 MW AC; 25.2 MW DC) solar farm is the largest project in PSEG Solar Source's Fleet. PSEG Solar Source today announced the...
PSEG Queen Creek Solar Farm (operator)PSEG Solar Source (operator)
SanTanValley.com·5 months ago
Regulatory·federal policy
Renewable Energy Update 9.26.25
Gov. Gavin Newsom last Friday, September 19, signed into law a sweeping package of climate and environment bills.
Gavin Newsom (executive)
JD Supra·5 months ago
Industry·corporate
Mars’ New Solar Plan Could Help Save the Family Farm
Well known for its $55 billion candy and pet care business, the U.S. packaged goods company Mars, Inc. has big plans to decarbonize its...
Mars, Inc. (other)
TriplePundit·6 months ago
Last updated 2026-03-21
View all 10 articles