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    Advantages Distavantages of Different Sources of Energy

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    Janarthanan Neya (Andersonss)

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    Advantages Distavantages of Different Sources of Energy

    Uploaded by

    Janarthanan Neya (Andersonss)
    2 views2 pages

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    Advantages distavantages of different sources of energy

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    © All Rights Reserved
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    2 views2 pages

    Advantages Distavantages of Different Sources of Energy

    Uploaded by

    Janarthanan Neya (Andersonss)

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    of 2

    Singapore’s Energy Trilemma

    As a small country with limited natural resources, Singapore faces an “energy trilemma”. That is,
    Singapore needs to strike a balance between energy security, competitive pricing and
    environmental sustainability.

    Sources of Energy

    Source of Energy How it works Advantage Disadvantage

    Hydropower When water is released from Low operating Only suitable for
    the reservoir, the water falls cost. mountainous areas.
    from a great height. The
    moving water spins the High construction cost.
    (Energy in
    gravitational turbine at the bottom of the Causes flooding when
    potential store in reservoir. Electrical power is reservoir is built.
    water is transferred generated when the turbine Damage to environment
    mechanically by a spins. surrounding
    force over distance
    to kinetic store of
    turbine)

    1
    Wind When wind blows at a wind Produces a lot of Large areas of land
    turbine, the blades of the energy in windy need to be cleared to
    (Energy in kinetic turbine spins/rotates and areas, more than build wind turbines,
    store in wind is generates electricity. solar leading to loss of
    transferred habitat.
    mechanically by a
    force over distance Noise pollution.
    to kinetic store of
    turbine) Only suitable for windy
    areas (Singapore has
    gentle wind)
    Geothermal reservoirs Water is pumped into the Does not depend Environmental pollution
    Earth. Heat from inside the on weather. caused by release of
    (Energy in internal Earth boils the water, poisonous gases such
    store of steam is generating steam. The as hydrogen sulfide.
    transferred moving steam spins the
    mechanically by a turbine and generates Only suitable for
    force over distance electricity. volcanic regions, where
    to kinetic store of the surface of the Earth
    turbine) is very hot.
    Biofuels Animal waste and plant We can grow the Like fossil fuels, the
    materials that cannot be plants needed to burning of biofuel
    (For cooking, energy eaten (such as animal make biofuel, so it releases air pollutants to
    in chemical potential manure) are made into is considered the environment.
    store of biofuel is biofuels which can be used renewable.
    transferred by as fuel for cooking or petrol
    heating to internal for vehicles.
    store of cooked food)
    Nuclear fuels Nuclear energy is obtained Produces a lot Nuclear waste are
    from nuclear reactions in the more energy radioactive and very
    atoms. During nuclear compared to other difficult to dispose.
    reaction/ fission, a large sources of energy.
    amount of heat is released.
    This heat is used to boil Does not depend
    on weather Risk of accidents and
    water and generate steam. pollutions from improper
    The steam spins the Produces roughly disposal of waste
    turbines. The turbines are 300 times more
    connected to generators, energy compared
    which generates electricity. to traditional fossil
    fuel power plants
    Tides Water movement from Produces a lot of High cost
    changing high and low tides energy, more than
    (Energy in kinetic causes the blades of the solar Affects marine life due
    store of moving water turbine to spin/rotate and to alterations of water
    is transferred by a generates electricity. currents, noise and
    force over distance to emission of
    kinetic store of electromagnetic fields
    turbine)

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