Electricity power available in my home?

  • During normal energy use, the power supplied by your electricity meter (18.4 kVA on average) should be sufficient. In theory this allows you to simultaneously supply appliances with a maximum power of 18.4kW or 18,400 watts.
  • If you have special installations that consume a lot of energy, such as a sauna, pottery kiln or electric vehicle, then that power might not be sufficient.

How do I calculate the maximum power that my electricity installation can supply?

To calculate the maximum power your meter can supply (expressed in volt-amperes), multiply the voltage (U) by the intensity (I) of the current which supplies your home.

  • The majority of homes in England are supplied with 230 volts (V) single-phase with an intensity of 80 amperes (A). The maximum capacity is therefore 230v x 80 A =