Question

what energy transformations occur in a hydro power plant

Answer 1

The potential energy of water held behind a dam is then transformed into mechanical energy (rotation) and the final transformation takes a place in a generator to electrical energy. In other words several transformations are required to produce the electrical energy.

Answer 2

Explanation:

Hydropower plants capture the energy of falling water to generate electricity. A turbine converts the kinetic energy of falling water into mechanical energy. Then a generator converts the mechanical energy from the turbine into electrical energy.