Are there any problems with hydropower?
The greatest disadvantages relate to the interruption to the normal flow of the river. This will influence the life forms which use the river, and result in siltation problems. Usually it results in reduced water flow downstream, which causes narrowing of the channel, invasion of the channel by new plant species, possible algal problems and a break in fish migration habits. The new dam will also destroy an environment amd habitats which are irreplaceable, and may also displace humans. The advantages include cheap power, a permanent water supply, creation of a possible recreation area, providing a possible drought water supply to the river downstream. The links below will explain further.
