Reliant is one of the leading companies that operate in the energy sectors and also one of the America's largest power producers. The company offers electricity and energy services in retail to customers who include manufacturing facilities, homes, government entities, institutions and businesses located throughout the state of Texas. The company operates as part of the NRG energy. Also known as the Light Company, Reliant can trace its origin to the company that saw the bringing of electricity to Houston. Back then electricity was supplied on an all-night light basis at a flat rate of $3 a month. Reliant is based in Houston, Texas.