Transcript Alternative Energies

Alternative Energies
Solar Energy
Energy received by the earth from the sun. This is
in the form of solar radiation which then make
solar electricity possible.
Solar Energy Advantages

Independent of power outages
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Saves money

Environmental safe
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Low or no maintenance
Disadvantages of Solar Energy

High start up cost

Large area needed to put panels in
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Location of sun is important
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No energy is created at night
Wind Energy
Kinetic energy of the wind is turned into electricity
Wind Energy Advantages

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Environmental friendly
Wind turbines take up less space than a power
station
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Wind is free
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Good for remote locations
Wind Energy Disadvantages

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Wind is unreliable
Produce less electricity- need more than one
turbine
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Start up very expensive
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Noise pollution
Geothermal Energy
To capture the heat under the surface of the
earths crust to produce electricity
Advantages of Geothermal

Environmental friendly
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No fossil fuels are consumed
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Little to no maintenance is required

Self sufficient
Disadvantages of Geothermal

Surface of earth must be easy to drill into
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Start up cost is high
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Run out of steam- no water
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May release harmful gases
Hydropower
Energy provided by falling or moving water
Advantages of Hydropower
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No pollutants
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Save on natural resources
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Predictable source
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Dam is a water reserve and economic draw
Disadvantages of Hydropower

Disturbs the habitat
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High start up cost
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Emits carbon dioxide
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Diverts natural waterways