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We aim to provide a safe and reliable electricity supply to you all, but occasionally things do go wrong or we need to switch the power off to do planned work on our network.

Regardless of how much we protect, maintain and improve our network faults will still occur. These faults may affect just one property or sometimes many thousands and can occur for a variety of different reasons.

The type of fault will also determine how long the power remains off.  Sometimes our networks can automatically correct themselves, but in times of severe weather it may take us many days to restore power to everyone.

What causes power outages »

Common causes of power outages and how we investigate them

How we get power back on »

How we investigate faults and work to restore your power

Why is my power off and my neighbour's still on? »

How our electricity distribution system works to provide you with power

Contact Us
in an emergency

London 0800 028 0247
East 0800 783 8838
South East 0800 783 8866


†Calls may be monitored and recorded as part of our customer care programme. Calls to ‘0800’ numbers are free from BT landlines, other network operators’ charges may vary.