METHODS TO GENERATE ELECTRICITY

Methods used to generate Electricity – Remember it!

Methods used to generate Electricity – Remember it!

  • Physics GCSE science revision- Methods Used to Generate ElectricitySome energy sources are renewable and some non-renewable.
  • Fossil fuels are non-renewable and produce the greenhouse gas carbon dioxide when burnt.
  • Nuclear fuels produces heat energy when nuclei are split. It also produces harmful nuclear waste.
  • Wind energy is renewable and produces no harmful waste products. However, some people dislike wind farms and if there’s no wind, there’s no electricity.
  • Water energy is renewable and can take the form of waves, tides and hydroelectric power. It produces no waste products and is a reliable source but habitats and farmland has been destroyed.
  • Geothermal energy is a renewable energy created by the heat energy released from rocks containing radioactive substances. It can only be found in a few regions.
  • Solar energy is renewable, comes with no fuel costs, and can provide electricity in remote regions. However, solar cells are expensive to produce and don’t function at night.
  • Physics GCSE science revision- Methods Used to Generate ElectricityEnergy reaches consumers via the National Grid.
  • The electricity flows at a low current to cut down the amount lost by heat.
  • Transformers modify the voltage of the alternating current (AC) found in the mains electrical supply.
  • Step-up transformers increase the voltage to the amount required to travel through the power lines of the National Grid.
  • Step-down transformers reduce the voltage to a safe level for consumer use.