Ampla Energia, currently operating as Enel Distribução Rio, is a private power distribution utility in Brazil and a subsidiary of the Italian group Enel. The company's main activity is energy distribution to 66 municipalities in the state of Rio de Janeiro, covering a significant concession area. Its business model is based on the regulation of the electricity sector, where it operates and maintains network infrastructure, connecting residential, commercial and industrial consumers. Enel Distribução Rio is responsible for bringing electricity from transmission grids to end customers, measuring consumption and charging for the service. The company's billing is derived from electricity rates, which are regulated by the National Electric Energy Agency (ANEEL).