Ip3 1
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Ip3 1 Presentation Transcript

  • 1. How much electrical power?
  • 2.
    • What electrical appliances are used in the home?
    • What businesses and industries are working at night?
    Night time
  • 3.
    • Do you use the same electrical power all day? Why not?
    • Do businesses and factories have busier times? When?
    Day time
  • 4. Why are the demand curves these shapes? Seasonal changes Summer and winter demand time (hours) MW
  • 5.
    • A range of different power stations in appropriate places.
    • Interconnected by high-voltage transmission lines.
    • Power supply can balance demand over the whole country.
    The National Grid
  • 6. . . .Blackout! If demand is greater than supply…