The agreement marks one of the biggest renewable Power Purchase Agreements in America.
PHOENIX — Today, Pattern Energy, a leader in clean energy and transmission infrastructure, and Salt River Project (SRP), a not-for profit public power utility serving more than 2 million people in central Arizona, announced they have signed a Power Purchase Agreement (PPA) for 600 megawatts (MW) of SunZia. This agreement will help SRP meet growing energy demand across the Phoenix metropolitan area while maintaining affordability, reliability and sustainability for customers.
SRP will receive 400 MW of energy beginning this fall and will increase its allocation to 600 MW by summer of 2027.
“This PPA highlights SRP’s leadership and our partnership, showing how a diverse and cost‑effective energy portfolio can meet Arizona’s needs today while supporting a reliable and resilient grid for the future,” said Pattern Energy’s Chief Executive Officer Hunter Armistead.
SunZia is set to deliver enough energy to power approximately one million American homes annually, representing an $11 billion energy investment across the Southwest. Backed by a 3,650 MW wind resource and a 550‑mile HVDC transmission line that efficiently moves large amounts of electricity across long distances, it adds a new, clean resource that contributes to SRP’s diverse portfolio of energy resources, which includes hydro, wind, natural gas, solar, battery storage and other generation.
SRP currently has 288 MW of wind energy serving its customers. The energy from SunZia supports SRP’s plan to more than double the capacity of its power system by 2035 through the addition of thousands of megawatts of renewable energy, as well as natural gas and battery energy storage resources.
“This agreement with Pattern Energy plays a key role in SRP’s all-of-the-above approach to meeting the growing energy needs of the Phoenix metropolitan area reliably, affordably and sustainably,” said Bobby Olsen, Associate General Manager and Chief Power System Executive. “This project will triple the amount of wind energy on SRP’s grid, helping us make progress toward our carbon reduction goals.”
###
About Pattern Energy
Pattern Energy is one of the world’s largest privately owned developers and operators of clean energy and transmission infrastructure. With more than 40 facilities across North America, Pattern’s portfolio includes wind, solar, and energy storage projects that deliver reliable, affordable power to millions of customers. With nearly 12,000 MW of operating and in-construction capacity, Pattern Energy is focused on meeting growing energy demand while strengthening communities and responsibly powering the future. For more information, visit www.patternenergy.com.
About Salt River Project
SRP is a community-based, not-for-profit public power utility and the largest electricity provider in the greater Phoenix metropolitan area, serving about 1.2 million customers. SRP provides water to about 2.5 million Valley residents, delivering 260 billion gallons of water (800,000 acre-feet) each year, and manages a 13,000-square-mile watershed that includes an extensive system of reservoirs, wells, irrigation laterals, and 131 miles of canals. For more information, visit www.srpnet.com.