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100 MW BESS operating in Grimes, TX — Electric Reliability Council of Texas, Inc.
100 MW
Nameplate Capacity
1
Generators
unit
Batteries
Technology
2024
Operating Since
Coordinates
30.6595, -95.9736
County
Grimes, TX
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Key Capture Energy | — | — |
| Owner(s) | Key Capture Energy | — | — |
| Status | Operating | — | — |
TX15 Limousin Oak Storage is a 100 MW battery energy storage system located in Grimes County, Texas. The plant began operating in 2024 and is owned and operated by Key Capture Energy. It consists of a single generator utilizing battery technology with lithium-ion (LIB) chemistry. The plant's battery energy storage system (BESS) has a total storage capacity of 227 MWh, providing a duration of 2.27 hours at full output.
The facility operates within the Electric Reliability Council of Texas (ERCOT) balancing authority, and the NERC region of TRE. According to state rankings, TX15 Limousin Oak Storage is the 212th largest power plant in Texas out of 224 plants. Nationally, it is ranked 483 out of 514 plants. The plant's primary fuel source is electricity (MWH), indicating it charges from the grid.
Generated from EIA, GEM, and public data sources
ISO/RTO
ERCOT
Market
ISO/RTO Member
NERC Region
TRE — Texas Reliability Entity
Balancing Authority
−1.3K MWh
Net Charging
-14.8K MWh
Annual Net Energy
-1.7%
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.
2023
$1,361/kW
Est. Construction Cost
Total estimated cost: $136.1M
Point of Interconnection
Nearest Substation
Singleton Substation · 345 kV
Substation Distance
0 km
Operator
CenterPoint Energy
Coord Source
OSM spatial
Market Position
ISO/RTO Market
ERCOT
LMP Node
LMO_ESR_RN
Pricing Hub
HB_HOUSTON
Alt. Hub / Zone
LZ_HOUSTON
Location Type
Resource Node
Node Source
Curated node match
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ask pi about TX15 Limousin Oak StorageElectric 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