Transmissora Aliança de Energia Elétrica S.A., together with its subsidiaries, engages in the construction, operation, and maintenance of electric power transmission lines in Brazil. It operates approximately a total length of 15,319 kilometers (km) of transmission lines, which include 14,677 km of transmission lines in operation and 735 km of lines under construction; 113 substations with voltage between 230 and 525KV; and one system operation center located in Rio de Janeiro. The company was founded in 2000 is headquartered in Rio De Janeiro, Brazil.