Rich in natural resources, Brazil shows a marked predominance of hydroelectric power plants. Built in different hydrographic basins these plants represent 85% of the installed power capacity and are connected by long transmission lines.
This scenario results from a period when the following factors prevailed:
- Availability of a large hydroelectric potential close to consumer centers;
- Feasible construction of large pluriannual accumulation dams;
- Less transmission trunks needed;
Currently, the conventional
thermoelectric and nuclear plants and
alternative power sources enjoying incentives (such as wind power and the Small Hydroelectric Centrals – PCHs), been the target of an increased demand. By
diversifying the generation complex with these options, it is expected that the expansion required to meet country demand will be attained.
Brazilian hydroelectric potential is still enormous. But, the existence of projects with a large generation potential in socially and environmentally
sensitive areas adds to the significance of investing in non-hydroelectric power sources.
In the long run, this stance will prevent any unbalance between demand and firm energy supply (ballasted) , considering the possibility of periods of drought.