Battery storageOperatingERCOT

Tierra Seca

Battery storage project in Val Verde County, Texas. 100 MW of nameplate capacity across 1 generator, operated by Tierra Seca BESS, LLC.

Also known as EIA plant 68748

Analyst: free account, 1 question a day.

Hamilton BESSWAL447Amistad Dam & PowerRockspringsTierra Seca25 km
Open in the map
6 plants within 47 km, from EIA coordinates.

Key facts

Capacity
100 MWNameplate
Generators
1 operatingEIA-860M, August 2026
Operating since
February 2026First generator online
Operator
Tierra Seca BESS, LLCEIA operator ID 67037
Grid
ERCOTBalancing authority ERCO
Price nodes
1 ERCOT nodeResource nodes with prices
Location
Val Verde County, TX29.3491, −100.8734
EIA plant ID
68748EIA plant page

Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.

How much power Tierra Seca produces

Free · EIA-923

Net generation, 2025

Not reported

Not reported MWh, final. 0 of 12 months reported

Battery discharge, 2025

Not reported

Charge Not reported

January to July 2026

−7.94 GWh

Provisional. 6 of 7 months reported

Annual net generation, GWh
Annual net generation from EIA-923
YearNet generation, MWhCapacity factorMonths reported
2000Not reportedNot reported0 of 12
2001Not reportedNot reported0 of 12
2002Not reportedNot reported0 of 12
2003Not reportedNot reported0 of 12
2004Not reportedNot reported0 of 12
2005Not reportedNot reported0 of 12
2006Not reportedNot reported0 of 12
2007Not reportedNot reported0 of 12
2008Not reportedNot reported0 of 12
2009Not reportedNot reported0 of 12
2010Not reportedNot reported0 of 12
2011Not reportedNot reported0 of 12
2012Not reportedNot reported0 of 12
2013Not reportedNot reported0 of 12
2014Not reportedNot reported0 of 12
2015Not reportedNot reported0 of 12
2016Not reportedNot reported0 of 12
2017Not reportedNot reported0 of 12
2018Not reportedNot reported0 of 12
2019Not reportedNot reported0 of 12
2020Not reportedNot reported0 of 12
2021Not reportedNot reported0 of 12
2022Not reportedNot reported0 of 12
2023Not reportedNot reported0 of 12
2024Not reportedNot reported0 of 12
2025Not reportedNot reported0 of 12
2026 (provisional, partial year)−7,940Not reported6 of 7

* 2026 covers January to July and is provisional. Battery plants can report negative net generation, when charging uses more energy than they discharge.

Power prices and basis

Free account · ERCOT

Emissions

Free · EPA CAMPD

No EPA emissions units are linked to this plant.

Water use

Free · EIA-923 cooling, USGS

No EIA cooling-water record for this plant in 2024. Plants without steam cooling, such as wind, solar and batteries, do not report cooling water.

Generators

Free · EIA-860M
GeneratorTechnologyNameplate MWOnline since
TSBatteries100.0February 2026

Ownership and offtake

Pro
Pro

Ownership and offtake are part of Pro

Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists Tierra Seca BESS, LLC as the operator, which is not always the owner.

Modeled data

Pro

Pro adds modeled values for this plant. Everything above stays free.

Analyst and MCP

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Power plants near Tierra Seca

Questions about Tierra Seca

Where is Tierra Seca?

Tierra Seca is in Val Verde County, Texas, at 29.3491, −100.8734. It is in the Electric Reliability Council of Texas, Inc. balancing area (ERCO).

Who operates Tierra Seca?

EIA-860M for August 2026 lists Tierra Seca BESS, LLC as the operator (EIA operator ID 67037). The operator is not always the owner.

When did Tierra Seca start operating?

Its first generator began operating in February 2026, according to EIA-860M.

Does InfraMap have power prices for Tierra Seca?

Yes. InfraMap has ERCOT day-ahead and real-time prices at 1 price node linked to Tierra Seca, with the hub price and node-to-hub basis. Prices are free with an InfraMap account; pricing node names are part of InfraMap Pro.

Sources

  • EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
  • EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
  • ERCOT day-ahead and real-time prices; node and hub assignments as of 2026-10-05

Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page