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 transcript:

Alternative sources of energy Eliška Dlouhá V8A

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

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

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

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

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

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

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