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Alternative sources of energy Eliška Dlouhá V8A. Alternative sources of energy reduce our dependance on fossil fuels renewable environmental friendly.

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Presentation on theme: "Alternative sources of energy Eliška Dlouhá V8A. Alternative sources of energy reduce our dependance on fossil fuels renewable environmental friendly."— Presentation transcript:

1 Alternative sources of energy Eliška Dlouhá V8A

2 Alternative sources of energy reduce our dependance on fossil fuels renewable environmental friendly no pollution

3 Solar energy ineffective - only 30% passive - duration, position, sun’s rays intensity active - electrical technology - solar panels no pollution, no care ineffective in colder regions

4 Wind energy windmill family energy needs, industrial uses (wind farms) no air pollution low cost windy areas noisy kill birds

5 Hydroelectric energy largest producer dams, water mills constant, predictable, controllable no greenhouse gases huge costs to build prevent the migration of fish tidal power

6 Geothermal energy from beneath the earth magma → heat → boil water → steam → turns the turbines no pollution, effective suitable for particular region harmful gases huge installation cost

7 Summary solar energy wind energy hydroelectric energy geothermal energy biomass energy hydrogen every source suitable for different area

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