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200 MW BESS under construction in Brazoria, TX — Electric Reliability Council of Texas, Inc.
200 MW
Nameplate Capacity
1
Generators
unit
Batteries
Technology
—
Operating Since
Coordinates
29.1503, -95.6512
County
Brazoria, TX
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Engie North America | Engie North America | — |
| Owner(s) | Engie North America | ENGIE | — |
| Status | Under construction | — | — |
The Castor power plant, located in Brazoria County, Texas, has a total capacity of 200 MW. The plant is owned by ENGIE, a company based in France, and operated by Engie North America. It utilizes batteries as its primary fuel source (MWH) and consists of a single generator.
Castor operates within the Electric Reliability Council of Texas (ERCOT) balancing authority and the TRE NERC region. According to state rankings, the plant is the 132nd largest out of 224 power plants in Texas. Nationally, it ranks as the 320th largest among 514 power plants.
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: $272.2M
Point of Interconnection
Nearest Substation
West Columbia Local Substation · 138 kV
Substation Distance
0.047 km
Operator
Texas-New Mexico Power
Coord Source
OSM spatial
Market Position
ISO/RTO Market
ERCOT
LMP Node
CAST_ESS_RN
Pricing Hub
HB_HOUSTON
Alt. Hub / Zone
LZ_HOUSTON
Location Type
Resource Node
Node Source
Curated node match
Last updated 2026-03-26
View all 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