Energy key words

• Fossil fuels

  Fuels consisting of hydrocarbons (coal, oil and natural gas), formed by the decomposition of prehistoric organisms in past geological periods
• Renewable energy

  Sources of energy such as solar and wind power that are not depleted as they are used
• Energy mix

  The relative contribution of different energy sources to a country's energy consumption
• Biofuels

  Fossil fuel substitutes that can be made from a range of crops including oilseeds, wheat and sugar. They can be blended with petrol and diesel.
• Geothermal energy

  The natural heat found in the Earth's crust in the form of steam, hot water and hot rock.
• Fuelwood in developing countries

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• Nuclear power

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• Hydro electricity 


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• Wind power 


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• Geothermal energy 


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• Solar power 


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• Energy use 


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• Energy security 


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