USUS Grid ExplorerInfrastructure intelligence
Preliminary 2025 facility recordProposed

Cheyenne, WY · EIA plant 69189

Cowboy Solar II

Cowboy Solar II is a solar power facility in Cheyenne, WY, with 565 MW of proposed capacity.

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Operating capacity0 MW0 operating generators
Proposed capacity565 MW2 proposed generators
UtilityTGE Wyoming 225, LLCEIA-reported operator
Balancing authorityWACMWestern Area Power Administration - Rocky Mountain Region

Capacity profile

Fuel and technology

Nameplate capacity
OperatingNo operating capacity reported
Proposed
Solar365 MW
Storage200 MW
Reported technologiesBatteriesSolar Photovoltaic

Nearby in WY

Related facilities

WY · 0.0 miCowboy Solar I800 MW →WY · 18.7 miCheyenne Prairie Generating Station140 MW →WY · 20.6 miSouth Cheyenne Solar150 MW →WY · 31.9 miCorriedale Wind Energy53 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