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  • Created by: mollk
  • Created on: 12-02-14 18:15
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  • Electricity.
    • Cost of Electricity
      • A kilowatt hour is calculated using power x time
        • So to find the cost of electricity... kilowatt hour used (KwH) x cost per KwH
    • Energy Changes
      • In a power station fossil fuels (gas, oil, coal) are burned.
        • Or nuclear fuels (uranium and plutonium)
        • Water is heated. The water turns to steam. The steam drives the turbine. This spins the generator. Generating electricity.
        • Power stations are around 35% efficient.
          • Gas power stations are around 60% efficient.
            • Power Stations that use waste energy for direct heating are around 80-90% efficient.


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