What's the difference between underground electricity cables and overhead electricity lines?

We deliver power to 8.3 million homes and businesses across London, the East and South East of England. 

Power is connected via thousands of overhead and underground power lines.
Overhead electricity lines are usually held up by wooden poles or steel towers. Typically overhead lines are more common in rural areas as they are used to cover greater distances. Underground electricity cables are laid below the ground and are usually found in built up areas such as cities.

Dangerous problem?

Please treat electricity cables as live, stay away and call us immediately on 0800 31 63 105 or 105. If you see electricity lines that are down or causing significant risk to the public please call 999.

Overhead electricity lines

Underground electricity cables