The turbines can be seen inside this hydroelectric dam. Why are they located at that particular height?

The turbines are located at a specific height in the hydroelectric dam in order to take advantage of the potential energy of the water flowing from a higher elevation to a lower elevation. The water flows through the dam and spins the turbines, which generates electricity. By placing the turbines at a certain height, the dam can harness more energy from the water and produce more electricity efficiently.