Memphis Light, Gas and Water Division (MLGW) helps lighten up the Memphis blues. The municipally owned utility provides electricity, water, and natural gas services for all of Shelby County, Tennessee, including the city of Memphis. It serves primarily residential and commercial customers. MLGW buys electricity from the Tennessee Valley Authority (TVA) and distributes it to almost 430,000 customers. The company purchases natural gas on the spot market, transmits it through open access pipelines, and delivers it to about 320,000 customers. Through its artesian water system, MLGW supplies water to more than 257,000 customers.