The Avra Valley Solar Generating Station is a 34 MW (DC, 25 MW AC) photovoltaic power plant in

Avra Valley The Avra Valley is a 50-mile (80 km) long northwest–southeast valley, bordering the west of Tucson, Arizona. The Tucson Mountains are at the valley's center-east, with suburbs ranging east of the Tucson Mountains and trending northwest to ...

Pima County Pima County ( ) is a county in the south central region of the U.S. state of Arizona. As of the 2020 census, the population was 1,043,433, making it Arizona's second-most populous county. The county seat is Tucson, where most of the populati ...

Arizona Arizona ( ; nv, Hoozdo Hahoodzo ; ood, Alĭ ṣonak ) is a state in the Southwestern United States. It is the 6th largest and the 14th most populous of the 50 states. Its capital and largest city is Phoenix. Arizona is part of the Fou ...

, owned by NRG. It uses single axis tracking that is designed to be maintenance free over the twenty year design life of the system. The panels are mounted on a north-south axis and rotate each day to follow the sun from sunrise to sunset, increasing the output by about 20%. Power is being sold to

Tucson Electric Power Tucson Electric Power (TEP) is an electric utility company serving southern Arizona in the United States. It is a subsidiary of Fortis, which announced its acquisition of parent company UNS Energy in 2013. Kino Veterans Memorial Stadium, a bas ...

in a 20-year

power purchase agreement A power purchase agreement (PPA), or electricity power agreement, is a contract between two parties, one which generates electricity (the seller) and one which is looking to purchase electricity (the buyer). The PPA defines all of the commercial te ...

.Avra Valley Project
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Production

References

{{Solar power in the United States Solar power stations in Arizona Photovoltaic power stations in the United States Buildings and structures in Pima County, Arizona NRG Energy

Production

See also

References