Renewable Energy Sources Sources that won t run out

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Renewable Energy Sources

• Sources that wont run out!

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The Sun is the source of nearly all energy on
Earth!
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Prehistoric trees captured energy from the Sun
Coal is the remains of prehistoric trees.
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Coal will eventually run out.
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lt40
It is estimated that we have less than 40 years
of oil left!
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Millions of years ago, tiny plants in the sea got
their energy from the Sun.
Tiny sea animals ate the tiny sea plants.
When they died, their bodies sank to the bottom
and, over millions of years, became oil.
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What are the disadvantages of burning coal, oil
and gas?
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Why does burning fossil fuels cause so many
problems?
Why does transporting fossil fuels cause problems?
Why are fossil fuels running out?
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We have to find energy sources that are renewable
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SOLAR COLLECTORS
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WIND TURBINES
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HYDRO-ELECTRICITY
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The turbines inside a dam
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How many are needed?
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New ideas?
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Geothermal
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Biomass
Logs, twigs, straw, dung, leaves..
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Hydro-electric dam
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Wave energy
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Free, renewable energy.
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The technology is here.
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Renewable Energy Sources

• A good idea?
• What are the advantages?
• What are the disadvantages?
• What about the environmental impact?
• Would you want a wind turbine next-door?

West Wight Middle School Science