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How much electrical power?
<ul><li>What electrical appliances are used in the home? </li></ul><ul><li>What businesses and industries are working at n...
<ul><li>Do you use the same electrical power all day? Why not? </li></ul><ul><li>Do businesses and factories have busier t...
Why are the demand curves these shapes? Seasonal changes Summer and winter demand time (hours) MW
<ul><li>A range of different power stations in appropriate places. </li></ul><ul><li>Interconnected by high-voltage transm...
. . .Blackout! If demand is greater than supply…
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Ip3 1

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Ip3 1

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

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