Tierra Seca — Plant Summary
- EIA Plant ID
- 68748
- Capacity
- 100 MW
- Primary Fuel
- Battery Storage
- Technology
- Batteries
- Status
- Under construction
- Location
- Val Verde, TX
- Operating Since
- —
- Generators
- 1
- Operator
- Tierra Seca BESS, LLC
- Parent Company
- —
- Balancing Authority
- Electric Reliability Council of Texas, Inc.
- ISO/RTO
- ERCOT
- NERC Region
- TRE
Tierra Seca
Under constructionBESS
Ranked #154 of 256 BESS plants in TX#311 of 837 nationally
100 MW BESS under construction in Val Verde, TX — Electric Reliability Council of Texas, Inc.
EIA
100 MW
Nameplate Capacity
1
Generators
unit
Batteries
Technology
—
Operating Since
Location
Coordinates
29.3491, -100.8734
County
Val Verde, TX
Nearby Plants
- Hamilton BESSBESS9.9 MW · 3.9 km
- WAL447Natural Gas1.2 MW · 5.8 km
- Amistad Dam & PowerHydro66 MW · 21.3 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Tierra Seca BESS, LLC | — | — |
| Owner(s) | Tierra Seca BESS, LLC | — | — |
| Status | Under construction | — | — |
Ownership Chain
No GEM tracker match for this plant — ownership chain unavailable.
About
Tierra Seca is a 100 MW battery energy storage system (BESS) located in Val Verde County, Texas. The plant is owned and operated by Tierra Seca BESS, LLC. It consists of a single generator utilizing batteries as its primary fuel source, designated by the code MWH. The facility operates within the Electric Reliability Council of Texas (ERCOT) balancing authority and the TRE NERC region.
Tierra Seca is ranked as the 213th largest power plant in Texas out of 224 facilities, and nationally it holds a rank of 510 out of 514. Public records indicate there have been 10 news articles related to the plant, all of which pertain to deals.
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 Queue1 projectBeta
Tierra Seca BESS
ActiveBattery102.7 MWERCOT
Generation
No generation data available for this plant.
Financial Data
No financial data available for this plant.
Pricing & Market Data
MEDIUM confidencePoint of Interconnection
Nearest Substation
Del Rio Substation · 138 kV
Substation Distance
3.88 km
Operator
American Electric Power
Coord Source
OSM spatial
Market Position
ISO/RTO Market
ERCOT
LMP Node
HAMI_BESS_RN
Pricing Hub
HB_SOUTH
Secondary Zone
LZ_SOUTH
Location Type
Resource Node
Node Source
Curated node match
News & Articles (10)Beta
General
Three massive grid-scale battery projects move ahead in Texas, California
Texas and California lead the latest energy storage surge with SolarMax and Spearmint advancing major projects, a Texas developer securing...
pv magazine USA·2 months ago
General
Spearmint Energy Lands Kyuden Equity Investment For Two 200 MWh ERCOT Battery Projects
Spearmint Energy closed an equity investment from Kyuden International Corporation to support Tierra Seca and Seven Flags, two 100 MW / 200...
Pulse 2.0·2 months ago
General
Spearmint Energy Secures Investment from Kyuden International Corporation for 400 MWh Battery Energy Storage Across Two Projects in ERCOT
Spearmint Energy (“Spearmint” or the “Company”), a next-generation energy company bringing stable, secure and cost-effective energy...
Business Wire·2 months ago
Deals·other
Spearmint Energy Secures Investment from Kyuden International Corporation for 400 MWh Battery Energy Storage Across Two Projects in ERCOT
Spearmint Energy (“Spearmint” or the “Company”), a next-generation energy company bringing stable, secure and cost-effective energy...
Spearmint Energy (developer)Kyuden International Corporation (lender)
Business Wire·2 months ago
Last updated 2026-03-26
View all 10 articles