National Grid and transformers

Why do we need a national grid

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  • The national grid and transformers
    • What do power stations provide?
      • A reliable, secure energy supply
      • An electricty supply that matches the changing demand during the day and over the course of the year
      • High voltage power lines that connect all the power stations to the consumers.
      • Electrical substation that control the voltage being supplies to consumers.
    • The amount of electricity consumed on a daily basis
      • Peak daily consumption is around six o'clock when people are cooking evening meals
      • Overall consumption is higher in the winter than in the summer, as people use more electricity for lighting and heating


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