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231.8 MW Batteries (116 MW) + Solar Photovoltaic (116 MW) planned in Victoria, TX — Electric Reliability Council of Texas, Inc.
231.8 MW
Nameplate Capacity
2
Generators
units
Hybrid (2)
Technology
Batteries + Solar Photovoltaic
Planned: —
Planned Operation
Coordinates
28.9050, -97.7102
County
Victoria, TX
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | GRS BESS Texas Eight LLC | — | — |
| Owner(s) | GRS BESS Texas Eight LLC | — | — |
| Status | Planned | pre-construction | — |
Marcos PV and BESS is a hybrid power plant located in Victoria County, Texas. The plant has a total capacity of 231.8 MW and is operated by GRS BESS Texas Eight LLC. It is comprised of two generators utilizing both solar photovoltaic and battery storage technologies. The primary fuel type is listed as MWH, indicating the plant draws power from the grid or on-site generation to charge the batteries.
The plant operates within the Electric Reliability Council of Texas (ERCOT) balancing authority, and is within the TRE NERC region. Marcos PV and BESS is ranked as the 75th largest power plant in Texas out of 224, and nationally it is ranked 227 out of 514. The solar photovoltaic portion of the plant uses a fixed tilt tracking system.
Generated from EIA, GEM, and public data sources
ISO/RTO
ERCOT
Market
ISO/RTO Member
NERC Region
TRE — Texas Reliability Entity
Balancing Authority
No generation data available for this plant.
2023
$1,361/kW
Est. Construction Cost
Total estimated cost: $315.5M
Point of Interconnection
Nearest Substation
Runge 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.
Last updated 2026-04-19
View all 5 articlesElectric 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
Top 10 solar states
Data tables and metrics from the powerplantsinfo.org database.