Resumen
Governments and society are concerned about the climate change that has been increasing over the years. It is known that the main cause is the emission of greenhouse gases, due to the burning of non-renewable fuels that are mainly used in the generation of energy both in companies and in the transport industry. At this moment a great opportunity opens up for the diffusion and the stimulus of the use of renewable energies, in order to make the energy matrix more sustainable. This article presents an overview of the Brazilian energy matrix, background, challenges and degree of sustainability in the production ofenergy, based on economic and environmental aspects of its production. Due to hydroelectricity and bioethanol, Brazil is still in a privileged position compared to many other countries in the South American. The country is self-sufficient in oil and complements its generation of energy with ?modern? resources, i.e. wind, solar and biomass plants. However, future will largely depend on how the government will be able to shape its renewable energy policies as the country faces challenges regarding regulations for innovation and foreign investment.