National Grid (Great Britain) - Grid Description - Network Size

Network Size

The following figures are taken from the 2005 Seven Year Statement (SYS)

  • Maximum demand (2005/6): 63 GW (approx.) (81.39% of capacity)
  • Annual electrical energy used in the UK is around 360 TWh (1.3 EJ)
  • Capacity (2005/6): 79.9 GW (or 80 GW per the 2008 Seven Year Statement)
  • Number of large power stations: 181
  • Length of 400 kV grid: 11,500 km (circuit)
  • Length of 275 kV grid: 9,800 km (circuit)
  • Length of 132 kV (or lower) grid; 5,250 km (circuit)

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