Hydropower is a clean source of energy. There are no problems with air pollution,
chemical runoff, toxic waste or the like.
Hydropower plants also create recreation areas and animal habitat. Because of the
change in water location, wide areas after the dam become great for water edge
species of animals. And the large reservoir is good for many types of
large fish. Boating areas are created in the reservoir too, as well as bird
watching sites downstream of the dam.
Some problems may still occur though., but through careful planning these
can be eliminated almost completely.