History: 75 Years of Reliability through Relationships
Download the official SPP 75th Anniversary book: The Power of Relationships
Southwest Power Pool dates to 1941, when 11 regional power companies joined to keep an Arkansas aluminum factory powered around the clock to meet critical defense needs. After the war, SPP's Executive Committee decided the organization should be retained to maintain electric reliability and coordination. After the Northeast power interruption in 1965, other reliability councils were organized.
In 1968, SPP joined 12 other entities to form what became the North American Electric Reliability Corporation (NERC). SPP incorporated as an Arkansas nonprofit organization in 1994. The Federal Energy Regulatory Commission (FERC) approved SPP as a Regional Transmission Organization in 2004 and a Regional Entity in 2007.
SPP expanded its operations in 2015 to serve all or parts of 14 states. The company is based in Little Rock, Ark., and has about 600 employees.