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2007-12-18 04:25:25 · 13 answers · asked by Blake P 1 in Science & Mathematics Engineering

13 answers

Most hydroelectric power comes from the potential energy of dammed water driving a water turbine and generator. In this case the energy extracted from the water depends on the volume and on the difference in height between the source and the water's outflow. This height difference is called the head. The amount of potential energy in water is proportional to the head.

2007-12-18 04:29:14 · answer #1 · answered by DanE 7 · 0 0

Electrical power is produced when a conductor passes through a magnetic field. This happens in a generator which consists of a large amount of "windings" mounted on a rotating shaft that pass through an stationary electro-magnetic field. There are many ways to turn the rotating shaft and allowing water to fall through a water turbine is one of them. That is hydroelectric power.

2007-12-18 04:33:13 · answer #2 · answered by lunatic 7 · 0 0

Electricity is produced by turbine or we can say generators.
This is done by moving / spinning the generators/ dynamos at high speed (revolutions - RPM). Mechanical energy is transformed to electric energy.
In hydroelectric the mechanical is energy is generated by guiding water from dams through tunnels to the turbines. Dams are at high ground so the gravity causes water to rush at high speed and spin the turbine, much like the wind in windmill.

2007-12-18 04:34:11 · answer #3 · answered by baksco 2 · 0 0

In a dam situation as the water falls it turns blades at the bottom of a shaft which turns an axle attached to a turbine. As the turbine turns it creates electricity.

2007-12-18 04:33:06 · answer #4 · answered by trunorth 6 · 0 0

Gravitational energy is present in the water in the reservoir. As it falls through the chute it gets converted into kinetic energy, which is turned into torque by the turbines and from there into electromotive force by generators.

2007-12-18 04:28:46 · answer #5 · answered by poorcocoboiboi 6 · 1 0

Hydro = water. So its electricity derived from a water-based source such as a river barrage.

2007-12-18 04:29:39 · answer #6 · answered by Babs 3 · 0 0

Falling Water, eg. Niagara Falls.

2007-12-18 04:28:18 · answer #7 · answered by hfrankmann 6 · 0 0

gravity, a source of water at a higher elevation, and turbine engine(s) in the pathway to the lower elevation

2007-12-18 04:30:26 · answer #8 · answered by In My Neighborhood 4 · 0 0

How about Hoover Dam?

2007-12-18 09:20:41 · answer #9 · answered by gatorbait 7 · 0 0

water turning a turbine

2007-12-18 04:27:55 · answer #10 · answered by costa 4 · 0 0

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