11. the ultimate sources of energy in a hydroelectric power station is : (a) the potential energy of water (b) the kinetic energy of water (c) the electro-chemical energy of water (d) solar energy
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The water in the reservoir above the inlet to the turbines has gravitational potential energy which is converted to kinetic energy and then to electrical energy as the water goes to the lower level of the outlet.
The ultimate source of that gravitational potential energy is whatever raised the water and deposited it in the reservoir. The Sun is obviously the source of energy for most of it, but not necessarily all of it. Fission nuclear power plants could provide the energy and electricity to pump water up to the reservoir. This is the most efficient way to store large amounts of energy.
The ultimate source of that gravitational potential energy is whatever raised the water and deposited it in the reservoir. The Sun is obviously the source of energy for most of it, but not necessarily all of it. Fission nuclear power plants could provide the energy and electricity to pump water up to the reservoir. This is the most efficient way to store large amounts of energy.
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