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Main sources of energy

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Main sources of energy

  1. 1. MAIN SOURCES OF ENERGY R E N N E O W N A B L E TYPES OF ENERGY ADVANTAGES DISADVANTAGES FOSSIL FUELS • It is an easy and a regular way of producing energy. • It is not so expensive to build power plants. • They will run out one day. • It pollutes a lot; it emits greenhouse gases, acid rain and it pollutes rivers and lakes. NUCLEAR • It produces a great amount of energy. • It neither produces acid rain nor greenhouse gases. • It can cause serious damages and accidents. • It’s very difficult and dangerous to keep radioactive waste. • The facilities are very expensive. R E N E W A B L E HYDRAULIC • It’s free. • It’s easy to keep. • It’s clean. • The reservoirs regulate the flow of the rivers. • The facilities are very expensive. • The water supply is irregular. • The reservoirs produce environmental alterations (e. g. in landscapes). • Heat waves can limit the quantity of this type of energy. WIND • It’s clean and free. • It won’t run out. • There are very few safety risks with wind turbines. • It’s a quick way of producing mechanical energy. • The power generators are very expensive. • It’s production is not regular. • It’s very noisy and it can cause a negative visual impact on landscapes. SOLAR • It’s free. • It’s clean, it doesn’t pollute. • The sun will always be there during our lifetime, so this type of energy won’t run out. • A great amount of land is needed. • The facilities are very expensive. • Its production is discontinuous. • Environmental impact due to solar panels.
  2. 2. BIOMASS • It reduces waste • It creates little rubbish. • It pollutes since it produces C02. • It’s limited. • It takes a long time to be created. • Many trees are cutting down. GEOTHERMAL • It’s clean: it doesn’t produce big amounts of waste. • It’s quite regular. • It’s practically endless. • Advanced and very expensive technological devices are needed. • It’s very expensive. • It deteriorates the landscape and the ecosystem. • It cannot be transported. SOLID URBAN WASTE • It reduces waste. • It pollutes. • It generates poisonous/ toxic products and release heavy metals. TIDAL ENERGY • Tides are free and will not run out. • It doesn’t pollute. • It’s noiseless/ it’s a quiet type of energy. • It has a negative impact on the landscape, flora and fauna. WAVE ENERGY • It’s clean and free. • Wave power does not produce greenhouse gases. • The facilities and the equipment are very expensive. • Electricity production depends on the wave speed, height and length.

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