Work is scheduled to start in March next year. The £1bn, eight-year project will see the construction of a 32.5km tunnel which will house electricity transmission cables 30m underground. The new cables will replace three circuits that currently run under the surface of roads between Wimbledon in the southwest to Crayford in the southeast.
The project has been developed to minimise disruption for Londoners, eliminating the need to dig up the existing cable infrastructure, which is now more than 50-years-old and reaching the end of its life.

