Hydropower energy is energy that comes from water that moves. Most of this type of energy is from water that is found in smaller bodies of water such as in a river.
Hydropower is a renewable energy source. Renewable energy means that this will never be used up. We will always have rivers and dams, and this is a big part of hydropower.
When water flows from different waters such as from river to river, the water goes into a pipe that is called a penstock. The penstock collects the water and when the water goes in, it causes the turbine blades to move and spin. When the water flows, the turbine blades will cause an electric generator to move and this will make electricity.
There are three different parts of a hydroelectric power plant. These include pumped storage system, storage system, and run-of-the-river system.
Pumped storage is a system that pumps water back into the reservoir by using a pump. This pump works all night long when there is less energy that is used. More electricity is used to pump the water back to the top of a dam where the reservoir is then filled up.
The storage system uses a dam that is put in the river. This dam causes the water that is flowing to go slower, and it stores the water at a lack that is at the bottom of the dam. When the waterfalls, it causes pressure that forces the water to go through the dam and causes the turbine generator to spin.
The run-of-the-river system is when turbines are used when the river flows. These do not make lakes and they do not cause there to be flooding. This type of system does not hurt the environment as much as the other systems do.
The problem with this system is that if the river does not stay full, it will not produce electricity.
Hydropower is not always good because it can cause there to be damage to the environment. This type of power can also cause there to be flooding.
When there is too much flooding, it can cause animals and people to lose their homes.
Another problem with hydropower is that it produces methane, and this can hurt the fish in the water.