Sealy BESS — Plant Summary
- EIA Plant ID
- 69045
- Capacity
- 200 MW
- Primary Fuel
- Battery Storage
- Technology
- Batteries
- Status
- Operating
- Location
- Austin, TX
- Operating Since
- 2025
- Generators
- 1
- Operator
- Sealy Power, LLC
- Parent Company
- —
- Balancing Authority
- Electric Reliability Council of Texas, Inc.
- ISO/RTO
- ERCOT
- NERC Region
- TRE
Sealy BESS
OperatingBESS
Ranked #59 of 256 BESS plants in TX#180 of 837 nationally
200 MW BESS operating in Austin, TX — Electric Reliability Council of Texas, Inc.
EIA
200 MW
Nameplate Capacity
1
Generators
unit
Batteries
Technology
2025
Operating Since
Location
Coordinates
29.8473, -96.1991
County
Austin, TX
Nearby Plants
- E-Volve Energy Holdings LLCSolar1.2 MW · 12.4 km
- Sunrose Renewable EnergyBESS600 MW · 20.7 km
- BovineSolar10 MW · 26.5 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Sealy Power, LLC | — | — |
| Owner(s) | Sealy Power, LLC | — | — |
| Status | Operating | — | — |
Ownership Chain
No GEM tracker match for this plant — ownership chain unavailable.
About
Sealy BESS is a battery energy storage system located in Austin County, Texas. The plant, owned and operated by Sealy Power, LLC, has a total capacity of 200 MW. It began operating in 2025 and utilizes batteries as its primary fuel source, categorized under MWH in energy data systems. The plant consists of a single generator and has a storage duration of 2 hours.
Sealy BESS operates within the Electric Reliability Council of Texas, Inc. (ERCOT) balancing authority and the TRE NERC region. It is ranked as the 119th largest power plant in Texas out of 224, and nationally it is ranked 307th out of 514. The plant's development and operation have been noted in industry and regulatory news.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
TRE
Balancing Authority
Electric Reliability Council of Texas, Inc.
Grid Voltage
138 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Interconnection Queue2 projectsBeta
BremRaek BESS
ActiveBattery200.6 MWERCOT
Generation
−1.3K MWh
Net Charging
—
Annual Net Energy
—
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.
Financial Data
No financial data available for this plant.
Pricing & Market Data
HIGH confidencePoint of Interconnection
Nearest Substation
Peters Substation · 138 kV
Substation Distance
< 10 km
Operator
CenterPoint Energy
Coord Source
OSM spatial
Market Position
ISO/RTO Market
ERCOT
LMP Node
WAL_RN
Pricing Hub
HB_HOUSTON
Secondary Zone
LZ_HOUSTON
Location Type
Resource Node
Node Source
EIA-860 direct report
News & Articles (2)Beta
Industry·technology
Battery energy storage in Texas
Batteries store energy during low demand periods and release it during high demand periods, providing greater reliability and stability to the Texas...
Texas (other)
Texas Comptroller of Public Accounts (.gov)·1 years ago
Regulatory·permitting
Tesla Gigafactory Texas Megapack energy storage project gains approval
The automaker and energy company has landed approval for a massive battery energy storage system (BESS) project at Gigafactory Texas, filings show.
Tesla (developer)Gigafactory Texas (other)
Teslarati·3 years ago
Last updated 2026-03-26
View all articles