CPFL Energia SA is Brazil-based holding company engaged in the distribution, generation and commercialization of electric energy in Brazil. The Company is involved in the generation of electric energy through hydroelectric plants, small hydropower plants and thermoelectric power stations. Through eight distribution subsidiaries, as of December 31, 2011, it served 559 municipalities and distributed electrical energy to approximately 6.9 million clients in Brazilian states of Sao Paulo, Rio Grande do Sul, Parana and Minas Gerais. As of December 31, 2011, the Company had a number of subsidiaries, such as Companhia Paulista de Forca e Luz, Rio Grande Energia SA, CPFL Geracao de Energia SA, CPFL Comercializacao Brasil SA and CPFL Jaguariuna SA, among others.