Question

How a hydroelectric power plant works, including why dams are built as parts of large hydro power plants

Answer 1

Hydropower plants they do capture the energy of the falling water which generates electricity.

 Turbines convert kinetic energy which is of falling water into mechanical energy. The generator will then convert mechanical energy.

The generator will then convert mechanical energy which is from the turbine to electrical energy. Dams are being built to increase potential energy for it to fall from a higher distance.
The greater the potential energy which is above the surface of the earth the higher the substance which is being suspended.

Answer 2

Answer:

Hydroelectric power plants convert the potential energy of water  stored at height into the kinetic energy of flowing water and generate electricity.

Explanation:

Hydroelectric power is the renewable energy source that converts the potential energy of stored water into the kinetic energy of flowing water. The energy is used to generate electricity. For the purpose, dams are constructed to store water and then to allow it to fall from the height. The water stored at height has ample of potential energy and the kinetic energy of falling water is used to run turbine.