The heat of the water downstream of the dam is due to the work of the hydroelectric power station. Hydroelectric power station refers to a place that uses the energy of water to produce electricity. Hydroelectric power plants are located downstream of narrow rivers with large differences in water flow. The water upstream of the hydroelectric power station dam must quickly impact the hydroelectric power station's electricity production equipment. station building to rotate it to produce electricity, thus causing hot water downstream.
Of course there is a difference.
Nuclear power plant: Firstly, a nuclear reaction occurs in the nuclear reactor, which generates huge heat, turns water into steam with high temperature and high pressure, drives the turbine to rotate and drives the generator to produce electricity. ---Conversion of nuclear energy into electrical energy
Hydroelectric power plant: Water falling from a height has kinetic energy, which turns the blades of the turbine, driving the generator to produce electricity.
－－－－Convert water energy (mechanical energy) into electrical energy.