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it not that efficient

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Q: Why do hydroelectric power plants produce only about 3 percent of the electrical energy in the world today?
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Related questions

What kind of power plants produce electrical energy from moving water?

Hydroelectric plants.


Hydroelectric dams use the kinetic energy of water to produce electrical energy What is the environmental drawback of building hydroelectric dams?

Dams disrupt a river's ecosystem.


What is changing kinetic energy of water into electrical energy?

hydroelectric


Why is hydroelectric source of energy better than fuels for generating electrical energy?

hydroelectric energy is free to the fuel fossil


What is needed to produce hydroelectric energy?

Water.


What percent of energy in us from hydroelectric?

15%


In a hydroelectric plant the mechanical energy in moving water is transformed into?

Into electrical energy.


Where is hydroelectric energy found?

Where is hydroelectric energy generated?Hydroelectric energy, being electricity generated from a hydro (water) source, usually a hydro-electric dam, can be found anywhere on the electrical grid.


Does nuclear fuel produce sixty eight percent of the electrical energy in US?

No, much less, about 20 percent at present


A generator is not required to generate electrical energy when what energy sources is used solar wind nuclear hydroelectric?

Hydro electrical


How fast can a generator convert water into hydroelectric energy?

Hydroelectric generators do not convert water into anything. And even assuming that the question means to ask: how fast does a hydroelectric generator produce energy? the short answer to that question would be instantaneously.A hydroelectric generator produces electricity by converting the kinetic energy of moving water into electrical energy via alternating magnets which are spun by the turbine getting hit by the moving water.If the question is: How much energy is produced by a hydroelectric generator, then that answer depends on the size and efficiency of the system.


Which best describes the energy conversion that happens when hydroelectric power plants are used to make electricity?

Kinetic energy to electrical energy