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Southern Power Pool

SPP was founded in 1941 when eleven regional power companies pooled their resources to keep Arkansas’ Jones Mill powered around the clock in support of critical, national defense needs. Today, SPP oversees the bulk electric grid and wholesale power market in the central United States on behalf of a diverse group of utilities and transmission companies in 14 states. We ensure the reliable supply of power, adequate transmission infrastructure, and competitive wholesale electricity prices for a 546,000-square-mile region including more than 60,000 miles of high-voltage transmission lines. SPP is one of nine independent system operators/regional transmission organizations (ISOs/RTOs). SPP is mandated by FERC to ensure reliable supplies of power, adequate transmission infrastructure and competitive wholesale prices of electricity. For more information, visit https://spp.org/