Alamo City ESS — Plant Summary
- EIA Plant ID
- 68348
- Capacity
- 200 MW
- Primary Fuel
- Battery Storage
- Technology
- Batteries
- Status
- Planned
- Location
- Bexar, TX
- Operating Since
- —
- Generators
- 1
- Operator
- Alamo City ESS LLC
- Parent Company
- —
- Balancing Authority
- Electric Reliability Council of Texas, Inc.
- ISO/RTO
- ERCOT
- NERC Region
- TRE
Alamo City ESS
PlannedBESS
Ranked #63 of 256 BESS plants in TX#197 of 837 nationally
200 MW BESS planned in Bexar, TX — Electric Reliability Council of Texas, Inc.
EIA
200 MW
Nameplate Capacity
1
Generators
unit
Batteries
Technology
Planned: —
Planned Operation
Location
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Alamo City ESS LLC | — | — |
| Owner(s) | Alamo City ESS LLC | — | — |
| Status | Planned | — | — |
Ownership Chain
No GEM tracker match for this plant — ownership chain unavailable.
About
Alamo City ESS is a 200 MW battery energy storage system located in Bexar County, Texas. The plant's primary fuel is electricity (MWH), indicating it charges from the grid. It consists of a single generator and is operated by Alamo City ESS LLC.
The facility operates within the Electric Reliability Council of Texas (ERCOT) balancing authority, and the NERC region is TRE. Alamo City ESS ranks as the 125th largest power plant in Texas out of 224, and nationally it ranks 306th out of 514.
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
Generation
No generation data available for this plant.
Financial Data
No financial data available for this plant.
Pricing & Market Data
HIGH confidenceMarket Position
ISO/RTO Market
ERCOT
LMP Node
PAD1_ESS_RN
Pricing Hub
HB_SOUTH
Secondary Zone
LZ_SOUTH
Location Type
Resource Node
Node Source
Curated node match
News & Articles (9)Beta
Deals·other
OCI Holdings signs energy storage agreement with CPS Energy, Vertech
OCI Holdings announced Tuesday that its US subsidiary, OCI Energy, has signed a three-party memorandum of understanding with CPS Energy, a Texas-based energy...
OCI Holdings (developer)OCI Energy (developer)
The Korea Times·10 months ago
Grid·capacity addition
Texas to receive major power grid boost as massive new battery system takes shape: 'Crucial for meeting peak energy needs'
A new massive battery storage system is coming to San Antonio, Texas, and it will play a crucial role in supporting the grid.
The Cool Down·1 years ago
Deals·ppa
OCI Energy and CPS Energy Announce 120 MW / 480 MWH Battery Energy Storage System
120 megawatt (MW) – 480 megawatt-hour (MWh) – battery energy storage project called “Alamo City ESS LLC” which will be located in southeastern Bexar County,...
OCI Energy (developer)CPS Energy (buyer)
ESS News·1 years ago
Deals·ppa
Korea’s OCI, US partner CPS Energy sign 20-year energy storage deal
OCI Holdings Co. said on Tuesday it has signed a deal with US power supplier CPS Energy to jointly build a 120-megawatt solar cell plant and related battery...
OCI Holdings Co. (developer)CPS Energy (buyer)
The Korea Economic Daily Global Edition·1 years ago
Last updated 2026-03-14
View all 9 articles