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Centennial Flats

Solar power plant · La Paz County, Arizona

Nameplate capacity
511 MW
Rank in Arizona
#32
of 205 plants
In service since
2026
June 2026

Details

Primary fuel
Solar
Technology
Solar Photovoltaic
Operator
Copia Power
County
La Paz County
Generating units
4
Share of state capacity
1.14%
Rank among solar plants in Arizona
#6 of 119
EIA plant code
68466

Generating units

Individual generating units at Centennial Flats
UnitTechnologyNameplateSummerOnlineStatus
CFPV1Solar Photovoltaic167 MW167 MW2026Operating
CFPV2Solar Photovoltaic167 MW167 MW2026Operating
CFB1Batteries89 MW89 MW2026Operating
CFB2Batteries89 MW89 MW2026Operating

Nameplate is the maximum rated output; summer capacity is what the unit can reliably deliver on a hot day, which is typically lower.

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About this data

From EIA’s inventory of operable generators, August 2026 release. Capacity is nameplate — the maximum rated output of the equipment, not what the plant actually generates over a year, which depends on how often it runs. A 511 MW solar plant and a 511 MW nuclear plant have the same entry here and produce very different amounts of electricity.

“In service since” is the earliest in-service date among the units still listed, so a site rebuilt around newer equipment can read as younger than the site itself. All Arizona power plants · What Arizona actually generates