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APS Solar Power Plants    

APS now has more than 5 MW of installed solar capacity state-wide. Below are some of the solar power plants that APS currently has in operation. View more information on the solar energy production at some of our solar systems here.

Carol Spring Mountain* - In 1995, APS constructed a remote solar hybrid power plant to serve commercial customers located on top of Carol Spring Mountain.

Flagstaff* - The Flagstaff solar power plant was the first commercial plant in the State of Arizona.  The Flagstaff plant is housed within the APS service yard and produces 82 kW of solar power.  Built in 1997, the plant employs the use of single axis tracking technology to maximize the sun's energy.

Gilbert* - The 125 kW plant is adjacent to the Town's original ground water recharge site.  The one-acre site consists of 10 solar arrays, which track the sun from east to west on a single axis.  Each solar array (or series of panels) is about 150 feet long and 8 feet wide and sits relatively low to the ground.

Glendale* - The City of Glendale houses APS' first commercial application of high-concentration photovoltaic arrays at the Glendale Municipal Airport.  This technology tracks the sun's movement and employs special lenses to concentrate the sun's rays 250 times onto each solar cell.

Gray Wolf Landfill* - The Gray Wolf Landfill is in a remote area.  In August, 2002 APS installed a solar-hybrid power system using photovoltaics, battery storage and a diesel backup system.

Phoenix* - The Arizona Department of Environmental Quality (ADEQ) hosts a 127 kW flat panel solar plant built on top of the facility's parking canopy.

Prescott* - APS and Embry-Riddle Aeronautical University joined to construct a 190-kW plant, which feeds solar power to the electric grid. The plant uses a single axis tracking system that allows the photovoltaic arrays to track the sun through the sky. The plant was dedicated in April 2001. 

Prescott Airport Solar Plant* - APS and the City of Prescott teamed to build a plant near the Prescott Airport which currently produces 3.5 MW of solar power.  This plant has high concentration and a single axis tracking technology.

Prescott College* - The fixed photovoltaic panels are used to shade the upper story walkway.  It generates around 10 kW of electricity.

Saguaro Solar Trough* - This facility is located at the APS Saguaro Plant in Red Rock, Arizona near Marana.  This facility is the first solar trough to combine an organic Rankine cycle turbine engine with a parabolic trough solar field.  The plant generates 1 MW of power.

Scottsdale Covered Parking * - in 1999, the City of Scottsdale formed a unique alliance with APS in an effort to meet the need for covered parking at a commercial building with a practical way of generating clean energy.  An 8,500 square foot parking structure covered with photovoltaic panels generates 93 kW at a City of Scottsdale service yard.  The City and APS built two additional 2 kW systems at the City's Mustang and Civic Center Libraries.

Scottsdale Water Campus* - APS and the City of Scottsdale joined to build a single axis tracking photovoltaic plant on top of the City's domestic water tanks.  The single axis tracking system produces 300 kW of solar power.

STMicro Rooftop Solar System* - This system was the first solar application in Arizona installed for commercial grid-connected customers.

Tempe* - Located on the grounds of The APS Solar Test and Research Center (APS STAR Center) in Tempe, this solar plant generates 602 kW of solar power for use by all APS customers. View the  APS STAR Center guide.

Yuma West Wetlands Solar Garden* - In a joint collaboration between the Heritage Wetlands, City of Yuma and APS, the West Wetlands Solar Garden consists of 24 tilted trackers and generates 86 kW of power.  This is an educational facility with informational signs at the site.

Yuma-Yucca Power Plant * - APS built a solar power plant at the Yucca Power Plant in Somerton.  This plant generates 100 kW of power, enough to serve about 31 homes.

1 kW = 1,000 Watts
1 MW = 1,000,000 Watts

For more information about our solar power plants, please contact us.

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