Red Horse Solar and Wind

Green (Energy) Acres

Tucson Electric Power has a continually expanding portfolio of clean renewable resources that help us provide affordable, reliable and sustainable energy service. Our “green acres” of community scale solar arrays and wind farms generate abundant clean energy for our  customers.

More than 14 percent of our community's power came from renewable resources in 2018. That's nearly double the 8 percent level required last year by the Arizona Renewable Energy Standard, which calls on utilities to increase their use of renewable energy each year until it reaches 15 percent of retail sales in 2025. The standard is based on the combined output of both utility resources and smaller private systems.

Our investment in clean, green generating resources will continue as we reduce our reliance on coal. TEP anticipates adding 800 megawatts (MW) of new renewable capacity by the end of 2030, boosting our total renewable energy portfolio to approximately 1,200 MW.  We're also investing in energy storage, fast-ramping natural gas generators and other facilities needed to support new renewable resources.

TEP, recognized worldwide as an industry leader in renewable energy, will continue to invest in innovative, cost-effective renewable programs that offer benefits for all customers.

Solar Resource Capacity

TEP’s community-scale solar resources have a combined capacity of 254 megawatts. That’s enough clean, green energy to power more than 53,000 homes for a year.

Note: One megawatt of solar capacity is enough to power about 211 homes for a year.

Supporting solar for everyone

With panels spreading out far and wide, TEP is working to provide customers with more opportunities to go solar.

The TEP GoSolar Shares program allows residential and business customers to cover some or all of their electrical needs by purchasing locally generated solar power.

Our new TEP GoSolar Home program, available soon, will allow homeowners to get all their power from a local TEP solar array for a fixed price that won’t change for a decade.

TEP also developed hundreds of rooftop solar arrays through its innovative TEP Residential Solar Program, a pilot project that provided fixed-price electric service using solar arrays installed on customers’ homes.

Considering solar for your home or business? Here are important questions to consider. Or, click here to learn more about connecting to TEP’s local distribution system.

Innovation in solar & other renewable resources

TEP, which built its first large solar array more than a decade ago, understands the importance of innovation in advancing renewable energy. We’re installing innovative energy storage systems to help enhance the resiliency of the local electric gird and support the expansion of solar power resources.

The Solar Zone –a joint venture of TEP, the University of Arizona and solar developers – is the largest multi-technology solar testing, evaluation and demonstration site in the United States. The Solar Zone at the University of Arizona Science and Technology Park in Tucson.

Researchers and scientists in the UA Renewable Energy Network work closely with TEP personnel to test solar panels, forecast weather, experiment with different solar technologies and develop batteries for storing energy.

Gabriel Torres

Improving solar productivity

Learn how TEP personnel monitor solar sites throughout Arizona.
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Renewable Site Map

View a map of our expanding portfolio of clean renewable resources.

Affordable, Reliable, Sustainable Solar for Tomorrow

TEP's community-scale solar power systems provide more reliable, affordable and sustainable energy than other renewable energy resources. Their large scale, cost-effective construction helps keep our rates affordable as we increase the sustainability of our energy portfolio. Have a look at the following videos to learn more about our community scale solar resources.

TEP’s renewable energy portfolio

Project Name In Service Location Capacity (MW)
TEP Owned (Utility Scale)
Fort Huachuca Phase II 2017 Fort Huachuca, Sierra Vista 5
Sundt Augmentation (solar thermal) 2014 Sundt Generating Station #4, Tucson 5
White Mountain Solar 2014 Springerville 10
Fort Huachuca Phase I 2014 Fort Huachuca, Sierra Vista 17.2
Solon Prairie Fire 2012 Old Vail & Valencia, Tucson 5
SunPower HQ 2012 TEP Headquarters, Tucson 0.1
SunPower OH 2012 TEP Irvington Campus, Tucson 0.5
UASTP II 2011 UA Tech Park * 5
UASTP I 2010 UA Tech Park * 1.6
Springerville 1.9 expansion 2010 Springerville 1.9
Springerville 4.6 2004 Springerville 4.6
DeMoss Petrie 2001 Grant & Interstate 10, Tucson 0.2
Total Owned: 56
Power Purchase (Utility Scale)
Iron Horse 2017 UA Tech Park 2.4
Avalon Solar II 2016 Sahuarita 21.5
Red Horse Solar 2015 Willcox 51.3
Avalon Solar 2014 Sahuarita 35
Cogenra 2014 UA Tech Park * 1.4
Valencia Solar 2013 Valencia & Interstate 10, Tucson 13.2
E.On Tech Park 2012 UA Tech Park * 6.6
Gato Montes Solar 2012 UA Tech Park * 6
Avra Valley 2012 Marana 34.4
Picture Rocks 2012 Marana 25
Amonix UASTP Solar Power Generation Station 2011 UA Tech Park * 2
Total Power Purchase: 198.8
Total Utility Scale Solar: 254.7
Rooftop Solar Systems
Residential 117
Commercial 102
Total Rooftop Solar Systems: 219
Total Solar: 473.7
Red Horse Wind 2015 Willcox 30
Macho Springs 2011 Deming, NM 50.4
Total Wind: 80.4
Sundt - Los Reales 1998 Sundt Generating Station #4, Tucson 4
Total Renewable Resources: 558.1