Tennessee Valley Authority (TVA) purchased East Tennessee Light and Power Company from Cities Service Power and Light Company in December 1944. On March 30, 1945, the Greeneville Board of Mayor and Alderman agreed to purchase East Tennessee Light and Power Company, thus creating the Greeneville Light & Power System , a Municipal Power Distributor. Greeneville Light & Power System began providing electricity to Greene County, Tennessee in 1945. By the 1950's, the convenience of electricity had been extended into our rural areas. Having completed 60 years of service in 2005, Greeneville Light & Power System is noted for providing reliable service, with some of the lowest rates in the Southeast USA/region. Greeneville Light & Power System has also been a significant player in bringing industry to Greene County, Tennessee.
In July 2019, Greeneville Light and Power officially became the Greeneville Energy Authority to position themselves to offer broadband services.