CPFL Energia SA generates, transmits, and distributes electricity in Brazil. The company serves 6.7 million clients in São Paulo and Rio Grande do Sul. The company is the largest private energy distributor in Brazil with a 13% share of the domestic power distribution market. It also has 16% of the shares in the marketing market and 2% of total generation, focused mainly on renewable energy. The trading unit seeks energy for the company's distribution business and sells energy to free customers and other distribution companies.