Question

Hydroelectric generated at a dam may be considerd another form of energy explain

Answer 1

Almost every mainstream form of energy is an adapted version of solar energy. We know that energy cannot be created or destroyed and so the energy in every system must come from somewhere. And that somewhere is nearly always the sun. In the example of wind power, the electricity is harvested from the kinetic energy of the wind, of course. But where did this kinetic energy come from? Wind is caused by the flow of air as the atmosphere attempts to equalise its air pressure. And these inequalities in air pressure are cause by the sun, as it heats the air in various places, altering the densities and pressures. 

In Hydro Power, the electricity is harvested from the kinetic energy of water flowing through a turbine. This kinetic energy came from the potential energy stored in the water from being up high. But how did the water get up high to gain this potential energy? The answer is, once again, the sun. The water cycle, evaporation and rain, are what cause the water to be distributed to higher altitudes to be run through turbines. The sun provided the heat energy to cause the evaporation. 

In considering most form of energy currently known today, almost all can be traced back to the sun as the source of their energy.
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Answer 2

In Hydro Power, the electricity is harvested from the kinetic energy of water flowing through a  turbine. The sun provided the heat energy to cause the evaporation. In considering most form of energy  currently known today, almost all can be traced back to the sun as the source of their energy.