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HYDROELETRICITY. DONE BY: EMILY BETTY. HYDROELECTRICITY. It is electricity obtained by harnessing the power of water flowing down from a high level Huge generators  convert the potential energy of falling or fast moving water into electrical energy

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hydroeletricity

HYDROELETRICITY

DONE BY: EMILY

BETTY

hydroelectricity
HYDROELECTRICITY
  • It is electricity obtained by harnessing the power of water flowing down from a high level
  • Huge generators  convert the potential energy of falling or fast moving water into electrical energy
  • It is timeless and renewable
slide3

-At the top, water is gathered there

  • -The water is blocked by Sluice gates
  • These gates are automatic, they open or close by control
  • The bigger the height difference between the upstream water leel, the greater the amount of electricity generated.
slide5

Water then flows down

  • The kinetic energy of the water is used to turn the turbine which is connected to the generator
  • The water then flows to the downstream outlet
slide6

The turbine's rotation spins

  • electromagnets which generate current in stationary coils of wire in the generator
slide7

-The current is put through a transformer where the voltage is increased for long distance transmission over power lines

energy transformation
ENERGY TRANSFORMATION

GRAVATATIONAL POTENTIAL ENERGY

KINETIC ENERGY

ELECTRICAL ENERGY

slide9
ADVANTAGES

DISADVANTAGES

DESTROYS HABITATS

FEW AREAS SUITABLE

UNSIGHTLY

EXPENSIVE TO BUILT

LARGE AREA REQUIRED

  • RENEWABLE
  • NO ACID RAIN
  • NO GLOBAL WARMING
  • CHEAP TO RUN ONCE BUILT
  • SOME SYSTEMS PUMP WATER BACK UP AT NIGHT ITHE THE SURPLUS ELECTRICITY – ENERGY EFFICIENT.