Customers of Arizona Public Service (APS) will soon power their homes and businesses with solar after sunset thanks to three major clean-energy initiatives.
APS will add battery storage to its existing fleet of solar power plants, build new solar plants with storage and use storage to deliver cleaner energy to customers at times of peak energy usage. As a result, APS customers will be able to use solar energy even after the sun goes down. Family dinners, prime-time television and bedtime reading lights will all be powered by a cleaner energy mix.
“Arizona is already a national leader in solar energy. The challenge is, no one has figured out how to stop the sun from setting at night,” said APS Chairman and CEO Don Brandt. “As storage technology improves and declines in cost, we will increasingly be able to store the power of the sun cost effectively to deliver when our customers need it.”
APS already provides customers with an energy mix that is 50% clean and getting cleaner. These initiatives will add 850 MW of battery storage and at least 100 MW of new solar generation by 2025, for a total of 950 MW of new clean-energy technology.
“The Energy Storage Association congratulates APS for cementing its leadership among utilities by integrating energy storage into its system operations and realizing savings for consumers,” said Kelly Speakes-Backman, CEO of ESA. “We especially applaud APS for partnering with third parties in this effort, sending a strong signal for businesses to invest in energy storage in Arizona. We look forward to that day when energy storage is the central tool for maintaining a reliable and resilient, efficient, sustainable and affordable grid.”
Adding Storage to Existing Solar Plants
APS owns and operates throughout the state large-scale solar plants that will be upgraded with 200 MW of battery storage systems. A team led by Invenergy will install six of the new battery systems at solar plants in Maricopa County and Yuma by 2020. The remaining two upgrades will be completed by 2021.
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