How many battery storage projects are in ERCOT?

ERCOT has 263 operating utility-scale battery storage projects with 19 GW of capacity, according to the EIA's monthly survey of power plants.

What is the largest battery storage project in ERCOT?

SAHARA BESS (SOHO BESS) in Brazoria County, Texas is the largest, at 409 MW. It came online in 2026.

How many battery storage projects were built in ERCOT in 2025?

54 battery storage projects came online in ERCOT in 2025, with 5,615 MW of capacity.

Who is developing battery storage projects in ERCOT?

Interconnection queues list each project under a project company, not the developer behind it. Cleanview researches the developer of every project and has them on paid plans.

Battery storage projects in ERCOT

ERCOT has 263 operating battery storage projects with 19 GW of capacity. 54 came online in 2025.

Operating263

See planned battery storage projects in ERCOT

Updated monthly. Last updated November 2026.

Under 50 MW50–249 MW250 MW and up

Updated monthly. Last updated November 2026.

ERCOT had 2 battery storage projects online in 2016 and 263 in 2026

148

202

263

2016’162017’172018’182019’192020’202021’212022’222023’232024’242025’252026’26

Battery storage projects online at the end of each year. Source: EIA-860M, compiled by Cleanview.

The 10 largest battery storage projects in ERCOT

Operating, by capacity

#	Battery storage project	Location	Year online	Capacity
1	SAHARA BESS (SOHO BESS)	Brazoria County, Texas	2026	409 MW
2	Platinum Storage	Fannin County, Texas	2026	348 MW
3	SMT Ironman Battery Storage Plant	Brazoria County, Texas	2025	304 MW
4	GulfStar Power, LLC	Wharton County, Texas	2025	300 MW
5	Rodeo Ranch Energy Storage	Reeves County, Texas	2023	300 MW
6	Cartwheel 1 - Storage, LLC	Hopkins County, Texas	2025	300 MW
7	PP Jaguar BESS LLC	McLennan County, Texas	2025	300 MW
8	Tanzanite Storage	Henderson County, Texas	2025	283 MW
9	DeCordova Steam Electric Station	Hood County, Texas	2022	269 MW
10	Five Wells Solar Center - Hybrid	Bell County, Texas	2024	263 MW

Battery storage projects that came online most recently in ERCOT

Newest first

#	Battery storage project	Location	Year online	Capacity
1	Mendoza Trail BESS	Crane County, Texas	2026	200 MW
2	Pintail BESS	San Patricio County, Texas	2026	200 MW
3	Vertus Energy Storage Plant	Galveston County, Texas	2026	200 MW
4	Crowned Heron 2 - Storage, LLC	Fort Bend County, Texas	2026	150 MW
5	Bocanova Energy Storage II	Brazoria County, Texas	2026	150 MW
6	Big Star Solar, LLC (Hybrid)	Bastrop County, Texas	2026	80 MW
7	Mesquite Clean Energy Center (BESS)	Cameron County, Texas	2026	10 MW
8	Project Lynx	Nueces County, Texas	2026	125 MW
9	Regis Escondido	Maverick County, Texas	2026	10 MW
10	SAHARA BESS (SOHO BESS)	Brazoria County, Texas	2026	409 MW

The developer behind each project is on paid plans. See plans

How Cleanview tracks battery storage projects

Operating battery storage projects come from the EIA's monthly survey of power plants. Planned projects come from the grid operators' interconnection queues. We research who is developing each one, since a queue lists a project company, not its owner.

Questions about battery storage projects in ERCOT

How many battery storage projects are in ERCOT?: ERCOT has 263 operating utility-scale battery storage projects with 19 GW of capacity, according to the EIA's monthly survey of power plants.
What is the largest battery storage project in ERCOT?: SAHARA BESS (SOHO BESS) in Brazoria County, Texas is the largest, at 409 MW. It came online in 2026.
How many battery storage projects were built in ERCOT in 2025?: 54 battery storage projects came online in ERCOT in 2025, with 5,615 MW of capacity.
Who is developing battery storage projects in ERCOT?: Interconnection queues list each project under a project company, not the developer behind it. Cleanview researches the developer of every project and has them on paid plans.