Seven Flags BESS LLC

Seven Flags BESS LLC is a 100 MW battery storage project in Webb County, Texas, operated by Seven Flags BESS LLC. EIA-860M lists 1 generating unit here, inside ERCOT. Its unit entered service in 2026.

As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m

Nameplate capacity
100 MW
100 MW net summer
Generating units
1
In service
2026
EIA plant ID
66689

Where it is

Loading map…
County
Webb County, Texas
Coordinates
27.4561, -99.4173
Balancing authority
ERCO
Sector
IPP Non-CHP

Units, technology and status

Operator of record
Seven Flags BESS LLC
Primary energy source
Battery
Technologies
Batteries
Status
Operating

Every plant Seven Flags BESS LLC reports to EIA →

Seven Flags BESS LLC: FAQ

Where is Seven Flags BESS LLC?
In Webb County, Texas (TX). The map on this page is placed at the coordinates EIA files for the plant, which locate the site rather than any individual unit.
How big is Seven Flags BESS LLC?
100 MW of nameplate capacity across 1 unit, as of the EIA-860M release for 2026-07.
Who owns Seven Flags BESS LLC?
EIA-860M names Seven Flags BESS LLC as the reporting entity. That is the operator of record on the survey, which is not always the ultimate owner.
Is Seven Flags BESS LLC still running?
EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.