Equatorial Energia S.A., through its subsidiaries, generates, transmits, and distributes electricity in Brazil. The company distributes electric energy in the 217 municipalities of Maranhão State with a concession area of approximately 332,000 square kilometers serving approximately 2.5 million consumers; 144 municipalities of Pará State with a concession area covering 1,248,000 square kilometers serving approximately 2.7 million consumers; 244 municipalities of Piauí State with a concession area covering 251,000 square kilometers serving approximately 1.3 million consumers; and 102 municipalities of Alagoas State with a concession area covering 28,000 square kilometers serving approximately 1.1 million consumers. In addition, it is involved in the electricity trading business. The company is was founded in 1958 and is based in Brasília, Brazil.