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102.6 MW BESS operating in Maverick, TX — Electric Reliability Council of Texas, Inc.
102.6 MW
Nameplate Capacity
1
Generators
unit
Batteries
Technology
2025
Operating Since
Coordinates
28.6995, -100.4035
County
Maverick, TX
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Fort Duncan BESS, LLC | — | — |
| Owner(s) | Fort Duncan BESS, LLC | — | — |
| Status | Operating | — | — |
Fort Duncan BESS is a 102.6 MW battery energy storage system located in Maverick County, Texas. The plant began operating in 2025 and has one generator. It is owned and operated by Fort Duncan BESS, LLC. The facility utilizes batteries as its primary fuel source, categorized as MWH in energy data.
The plant operates within the Electric Reliability Council of Texas (ERCOT) balancing authority and the TRE NERC region. Fort Duncan BESS has a storage duration of 2 hours. According to available rankings, the plant is the 194th largest in Texas out of 224 plants and the 472nd largest nationally out of 514 plants.
Generated from EIA, GEM, and public data sources
ISO/RTO
ERCOT
Market
ISO/RTO Member
NERC Region
TRE — Texas Reliability Entity
Balancing Authority
−1.7K MWh
Net Charging
-10.4K MWh
Annual Net Energy
-2.0%
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: $139.6M
Market Position
ISO/RTO Market
ERCOT
LMP Node
FTDUNCAN_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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ask pi about Fort Duncan BESSElectric 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