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It is a source of power that comes from the sun. The solar panels take in the energy radiated from the Sun and transfers his to electricity

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Uses waves to turn a turbine which turns a generator. This is how it produces energy.

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It is a source of power that’s comes from the wind. The 💨 is from the earth and isn’t transferred into kinetic energy

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NO pollution

No need to supervise this

Buying cost only

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it Is cheap to run

No pollution

Buying cost only

Safe to use

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It can only be used when it Is windy

Depends on the wind speed

If the wind is light less power will be created

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The energy is free - no fuel needed, no waste produced.

Not expensive to operate and maintain.

Can produce a great deal of energy.

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Depends on the waves - sometimes you'll get loads of energy, sometimes almost nothing.

Needs a suitable site, where waves are consistently strong.

Some designs are noisy. But so are waves, so any noise is unlikely to be a problem.

Must be able to withstand very rough weather.

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A dam is built to trap water, usually in a valley where there is an existing lake. Water is allowed to flow through tunnels in the dam, to turn turbines and thus drive generators.

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Once the dam is built, the energy is free.

No waste or pollution produced.

Much more reliable than wind, solar or wave power.

Water can be stored above the dam ready for peaks in demand.

Hydro-electric power stations can increase to full power very quickly, unlike other power stations.

Electricity can be generated constantly.

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The dams are very expensive to build.

Building a large dam will affect both sides of dam in terms of water quantity and quality.

Finding a suitable site can be difficult - the impact on residents and the environment may be unacceptable.

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Expensive

Only efficient in hot countries

Cannot be used at night

It can store only a small amount of energy

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Unreliable as:
1)  Depends on weather
2) Works in daylight hours only
3) Low power output

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Unreliable as:
1)  Depends on waves

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Reliable as:
1)  Hydropower facilities can quickly go from zero power to maximum output.