Battery storageOperatingERCOT

Cotulla BESS 1

Battery storage project in La Salle County, Texas. 9.9 MW of nameplate capacity across 1 generator, operated by Marubeni Power International, Inc..

Also known as EIA plant 69510

Open in InfraMap Ask the analyst about this plant

Analyst: free account, 1 question a day.

Open in the map

6 plants within 56 km, from EIA coordinates.

Key facts

Capacity: 9.9 MWNameplate
Generators: 1 operatingEIA-860M, August 2026
Operating since: July 2026First generator online
Operator: Marubeni Power International, Inc.EIA operator ID 67504
Grid: ERCOTBalancing authority ERCO
Price nodes: 1 ERCOT nodeResource nodes with prices
Location: La Salle County, TX28.4423, −99.2525
EIA plant ID: 69510EIA plant page

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

How much power Cotulla BESS 1 produces

Free · EIA-923

EIA-923 has no net generation reported for this plant.

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

Generator	Technology	Nameplate MW	Online since
COTUL	Batteries	9.9	July 2026

Ownership and offtake

Pro

Ownership and offtake are part of Pro

Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists Marubeni Power International, Inc. as the operator, which is not always the owner.

See what Pro includes

Modeled data

Pro

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

Analyst and MCP

300 analyst questions a month, plus MCP

Query Cotulla BESS 1 and 14,224 other projects from Claude or your own tools. Free accounts get 1 question a day.

See Pro, $100 a month Create a free account

Power plants near Cotulla BESS 1

CaterinaBattery storage · 9.9 MW · 42.5 km Holcomb (TX)Battery storage · 9.9 MW · 46.5 km Shakes SolarSolar · 200 MW · 49.2 km Elara SolarSolar · 132.4 MW · 49.6 km Sunset Ridge Energy Center, LLCBattery storage · 9.9 MW · 55.9 km PearsallNatural gas · 201.6 MW · 56.2 km

More plants operated by Marubeni Power International, Inc.

Palmview BESSBattery storage · 9.9 MW · Hidalgo County SE Edinburg BESSBattery storage · 9.9 MW · Hidalgo County

All 1,074 plants in Texas More battery storage projects in Texas 2 plants in La Salle County Largest power plants in Texas ERCOT on the mapMarubeni Power International, Inc.: 3 plants

Questions about Cotulla BESS 1

Where is Cotulla BESS 1?

Cotulla BESS 1 is in La Salle County, Texas, at 28.4423, −99.2526. It is in the Electric Reliability Council of Texas, Inc. balancing area (ERCO).

Who operates Cotulla BESS 1?

EIA-860M for August 2026 lists Marubeni Power International, Inc. as the operator (EIA operator ID 67504). The operator is not always the owner.

When did Cotulla BESS 1 start operating?

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

Does InfraMap have power prices for Cotulla BESS 1?

Yes. InfraMap has ERCOT day-ahead and real-time prices at 1 price node linked to Cotulla BESS 1, 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
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