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United States › Power plants › Battery storage › Colorado

BATTERY STORAGE

Spindle BESS

Spindle BESS is a 199 MW under construction battery storage site in Weld County, Colorado, operated by Spindle Battery LLC.

Plant statusUnder construction
  1. Planning (completed)
  2. Consented (completed)
  3. Construction (current stage)
  4. OperatingTarget Dec 2026 (not yet reached)
  5. Closed (not yet reached)

Planned start of operation reported to EIA: Dec 2026.

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Generators

Each generating unit EIA lists at this plant.

UnitTechnologyCapacityStatusOnlineRetired / planned retirement
SBABatteries199 MW Built, awaiting commercial operationTarget Dec 2026

Plant details

Operator
Spindle Battery LLC
Location
Weld County, Colorado
Balancing authority
PSCO
Sector
IPP Non-CHP
Capacity
Under construction: 199 MW
EIA plant ID
69946

Location

40.0924, -104.9012

Nearby power plants

Source: U.S. Energy Information Administration, Form EIA-860M, September 2026. Planned dates are targets reported by the developer and often change. Report a problem