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100 MW BESS operating in Tom Green, TX — Electric Reliability Council of Texas, Inc.
100 MW
Nameplate Capacity
1
Generators
unit
Batteries
Technology
2025
Operating Since
Coordinates
31.5080, -100.5870
County
Tom Green, TX
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Angelo Storage, LLC | — | — |
| Owner(s) | Angelo Storage, LLC | — | — |
| Status | Operating | — | — |
Angelo Storage is a 100 MW battery energy storage system located in Tom Green County, Texas. The plant began operating in 2025 and is owned and operated by Angelo Storage, LLC. The facility consists of a single generator utilizing batteries as its primary fuel source, with a storage duration of approximately 2.49 hours.
The plant operates within the Electric Reliability Council of Texas (ERCOT) balancing authority and the TRE NERC region. Angelo Storage is ranked as the 220th largest power plant in Texas out of 224, and nationally it is ranked 497th out of 514.
Generated from EIA, GEM, and public data sources
ISO/RTO
ERCOT
Market
ISO/RTO Member
NERC Region
TRE — Texas Reliability Entity
Balancing Authority
−741 MWh
Net Charging
-9.0K MWh
Annual Net Energy
-1.1%
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
Market Position
ISO/RTO Market
ERCOT
LMP Node
ANG_ALL
Pricing Hub
HB_WEST
Alt. Hub / Zone
LZ_WEST
Location Type
Resource Node
Node Source
Curated node match
Last updated 2026-03-26
View all articlesNo ask pi reports yet for this entity.
ask pi about Angelo StorageElectric Reliability Council of Texas, Inc. (ERCO)
Grid Voltage
345.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP