Where is Bottleneck Energy Storage?

In Tulare County, California (CA). 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 Bottleneck Energy Storage?

80 MW of nameplate capacity across 1 unit, as of the EIA-860M release for 2026-07.

Who owns Bottleneck Energy Storage?

EIA-860M names VESI 12 LLC as the reporting entity. That is the operator of record on the survey, which is not always the ultimate owner.

Is this the same as Bottleneck Energy Storage LLC?

Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — VESI 12 LLC here — not the project company that holds the asset. Project companies are commonly registered as an LLC carrying the plant's name, so a search for "Bottleneck Energy Storage LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.

Is Bottleneck Energy Storage still running?

EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.

Bottleneck Energy Storage

Bottleneck Energy Storage is a 80 MW battery storage project in Tulare County, California, operated by VESI 12 LLC. EIA-860M lists 1 generating unit here, inside CAISO. Its unit entered service in 2024.

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: 80 MW; 80 MW net summer
Generating units: 1
In service: 2024
EIA plant ID: 66757

Where it is

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County: Tulare County, California
Coordinates: 35.8384, -119.0884
Balancing authority: CISO
Sector: IPP Non-CHP

Units, technology and status

Operator of record: VESI 12 LLC
Primary energy source: Battery
Technologies: Batteries
Status: Operating

Every plant VESI 12 LLC reports to EIA →

Bottleneck Energy Storage: FAQ

Where is Bottleneck Energy Storage?: In Tulare County, California (CA). 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 Bottleneck Energy Storage?: 80 MW of nameplate capacity across 1 unit, as of the EIA-860M release for 2026-07.
Who owns Bottleneck Energy Storage?: EIA-860M names VESI 12 LLC as the reporting entity. That is the operator of record on the survey, which is not always the ultimate owner.
Is this the same as Bottleneck Energy Storage LLC?: Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — VESI 12 LLC here — not the project company that holds the asset. Project companies are commonly registered as an LLC carrying the plant's name, so a search for "Bottleneck Energy Storage LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Bottleneck Energy Storage still running?: EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.