USUS Grid ExplorerInfrastructure intelligence
Preliminary 2025 facility recordOperating

Longmont, CO · EIA plant 62373

I25 Battery Storage

I25 Battery Storage is a storage power facility in Longmont, CO, with 4 MW of operating capacity.

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Operating capacity4 MW1 operating generators
Proposed capacity0 MW0 proposed generators
UtilityUnited Power, IncEIA-reported operator
Balancing authorityWACMWestern Area Power Administration - Rocky Mountain Region

Capacity profile

Fuel and technology

Nameplate capacity
Operating
Storage4 MW
ProposedNo proposed capacity reported
Reported technologiesBatteries

Nearby in CO

Related facilities

CO · 2.5 miFrederick Battery Storage8 MW →CO · 5.2 miSpindle BESS199 MW →CO · 5.8 miMead Battery Storage8 MW →CO · 5.8 miSpindle Hill Energy Center420 MW →

Source quality

Preliminary facility data

This page uses the EIA-860 2025 Early Release. EIA identifies the release as preliminary, so it should not be used for official state or national aggregation. Capacity is nameplate capacity, not real-time output or annual generation.

Read methodologyEIA-860 source