Comparison of three energy types : nuclear, hydroelectric and thermoelectric, in Brazil, up to 2050

To pursue a semi-quantitative analysis of Brazil's electric energy production-consumption problem from now on until the 2050 year, is done. The main energy sources under consideration will be hidroelectric, thermoelectric (coal) and nuclear. It is assumed that the energy consumption will be within a specified minimum and maximum level of growth rate and for the limiting cases, the supply by hidroelectricity will be considered, and further supply from other sources will also be considered in the case which hidroelectric potential becomes exausted. It is intended that the best energy alternatives will be devised from today's reality, such as the almost exausted hidroelectric potential in the southwest region and the building of a growing nuclear program. The analysis will be oriented in the viewpoint of the cost-benefit in the economic, social and ecological areas. (Author)