It depends. A hydroelectric power installation at a pre-existing dam (it's called retrofitting) generally has a relatively small effect on the surroundings, and very little effect on the river or stream that supplies it with water. However, a hydropower project that includes a new dam and reservoir will have a considerable impact on the stream, as well as on the surrounding area.
Near rivers.
they provide hydroelectric power.
hydroelectric
it comes from the sea or rivers originally.
All rivers that flow downstream are capable of producing hydroelectric power.
Norway is the European country that produces the most hydroelectric power. Its abundant rivers and water resources make it an ideal location for harnessing hydroelectric energy.
Destruction of free-running rivers and their ecosystems
Hydroelectric Power!
There are around 2,000 hydroelectric power stations in Britain. These power stations generate renewable energy by using the flow of water in rivers and streams to turn turbines and produce electricity.
Water helps to generate hydroelectric power, which has commercial use.
Hydroelectric power plants can only operate near rivers. This is because the water is the source of energy for this plant.
Venezuela also uses its rivers to great advantage as sources of hydroelectric power.