This "normal service transformer" at the Palo Verde Nuclear Generating Station in the town of Tonopah in the Arizona desert, 50 miles west of Phoenix, reduces electrical voltage from 13.8 KV to the 4.16 KV that produces power in some plant components

The power plant, the largest in the United States by net generation and the only large nuclear power plant in the world not located near a large body of water, is privately owned by a consortium of companies from Texas to California. It serves communities and rural areas as far away as Los Angeles.
Title, date and keywords based on information provided by the photographer.
Gift; Barbara Barrett; 2018; (DLC/PP-2018:112)
Forms part of Carol M. Highsmith's America Project in the Carol M. Highsmith Archive.
Credit line: Photographs in the Carol M. Highsmith Archive, Library of Congress, Prints and Photographs Division.