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next is making arizona the solar capital of america
With more than 300 days of sunshine per year, we believe solar energy should, and will, play a growing role in meeting Arizona’s energy needs. As our customers increasingly want to benefit from solar energy, we continue to add solar projects statewide, from the Grand Canyon to Gila Bend, Chase Field to Yuma. In fact, APS ranks third nationally for solar installed in 2013, according to the Solar Electric Power Association.

 

​advancing arizona’s solar leadership
Today, we generate enough solar energy to power 200,000 homes – more than 15% of all our customers – and have invested in nine community-scale solar plants statewide. Solar is being generated in exciting new ways from solar structures at ASU to a solar plant at Luke Air Force Base. We continue to find innovative ways to maintain Arizona’s solar leadership today and for years to come.
 
asu partnership
As the largest energy supplier to ASU, we have been partnering with the university on solar projects since 2004. 
 
The newest PowerParasol structures near Memorial Union and Gammage Auditorium are one such project. These innovative structures not only produce solar energy, provide shade by day and light after dark – they also serve an aesthetic purpose that beautifies the campus.
 
We provided grid interconnection, logistical support and financial incentives that covered approximately 40% of the cost. Today, ASU has more solar capacity than any other higher education institution in the nation.
 
 Solana 
luke air force base partnership

We are proud to partner with Luke Air Force Base on a new solar power plant that will create more renewable energy for our customers. The plant is being built on 106 acres of land leased from Luke, which will save the Air Force money and help both Luke and APS meet renewable energy generation goals.

This partnership will power 2,500 Arizona homes and will create more than 200 local jobs during construction. The new solar plant will set Arizona apart as a leader in solar innovation, visible by people who come from all over the world to work and train on Base.
 
The plant will come online summer 2015 and join our eight other AZ Sun projects already online or in development.

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solana - solar power at night

Solana Generating Station harnesses the power of the sun and continues to deliver it to customers for up to six hours after sunset. As the first solar plant in the United States with thermal energy storage, Solana allows solar energy to power customer homes even when it’s dark.

how solana generating station works
The ability to generate solar electricity after sunset is one of the unique characteristics of concentrated solar power (CSP) technology. Solar thermal storage helps reduce intermittency issues that other renewables, such as wind and photovoltaics (rooftop solar panels), present. When the sun goes behind a cloud, production levels at Solana Generating Station are able to stay consistent.
 
The process begins with 2,700 parabolic trough mirrors, which follow the sun to focus its heat on a pipe containing a heat transfer fluid. This fluid can reach a temperature of 735 degrees Fahrenheit and flows to steam boilers, where it heats water to create steam. The steam drives two 140-megawatt (MW) turbines to produce electricity, much like a traditional power plant.
 
In addition to creating steam, the heat transfer fluid is used to heat molten salt in large tanks. When the sun goes down, the heat transfer fluid can be heated by the molten salt to create steam by running it through the tanks instead of the field of parabolic mirrors.
 
APS purchases 100% of the power generated at Solana.

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flagstaff community power project
We see a future when 30% or more of a neighborhood could have solar panels on their roofs. To make this possible, Arizona’s current electricity grid needs to evolve. Through the Flagstaff Community Power Project R&D initiative, APS partnered with a school and more than 100 residents to help them go solar. Now we are able to study the effects of this high concentration of solar energy on the grid in a single neighborhood.

 


 
solar schools
Schools from across the state are participating in APS programs designed to help them go solar. These solar projects provide shade for playgrounds and parking lots, while giving kids a chance to learn more about renewable energy in the classroom.
“I think it’s an excellent thing in today’s world to show our children, especially here in Arizona, how the sun can really be utilized in their everyday life,” said Lori Ritz, principal of Sunnyslope Elementary.
 
Through the Schools and Government Program, we have provided more than $200 million in solar incentives to more than 300 schools in 70 Arizona school districts. Nearly sixty of the 300 plus solar installations are owned and operated by APS, while the rest are owned and operated by third-party vendors. All of them have been paid for with APS incentives.
 

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solar energy

solar leadership

we’re putting the sun to work for our customers by bringing
more solar to Arizona and you

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powering arizona with solar

modernized grid

we’re looking forward to meet your changing energy needs through advanced
technology and a modernized grid

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energy future

from energy-efficiency programs to renewable energy, we’re creating a
sustainable energy future for Arizona

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