SRP, based in Phoenix, was established in 1903 as the nation's first multipurpose reclamation project authorized under the National Reclamation Act. Today, SRP is the nation's third-largest public power utility and one of Arizona's largest water suppliers.
The Salt River Valley Water Users' Association was incorporated on February 7, 1903, for the purpose of furnishing water, power, and drainage for the benefit of approximately 4,800 individual landowners.
When Phoenix and the surrounding communities began to grow, patterns of water distribution were affected. A great impact was also felt on electrical services provided by SRP. To address these growing energy needs, SRP operates or participates in a number of major thermal and hydroelectric powerplants and generating facilities in Arizona and throughout the Southwest.