London Power Tunnels
London Power Tunnels is a project by National Grid plc to reinforce the electricity transmission network in London, UK, by constructing more than 60 km of new deep-level tunnels carrying high-voltage cables.

The new network of tunnels replaces a series of ageing power cables, most of which were buried just beneath roads. These were becoming unreliable, difficult to maintain without disrupting traffic, and were unable to meet future demand for electricity. The new tunnels allow the power cables to be upgraded and maintained without disruption to traffic and residents on the surface.

The project is divided into two phases: the first phase involved constructing tunnels connecting substations at Wimbledon, Hackney, and Willesden, and was completed in 2018. The second phase involves linking Wimbledon substation with Crayford, and is expected to be completed in 2026.
Q1465461
National Grid plc
ORG
Q200928
electricity transmission network
Concept
Q84
London
LOC
Q736742
Wimbledon
LOC
Q58888182
Hackney
LOC
Q146702
Willesden
LOC
Q146676
Crayford
LOC
Q84081306
London Power Tunnels
MISC
2018-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
2018
DATE
2026-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
2026
DATE
+60^^http://www.w3.org/2001/XMLSchema#decimal
60
NUMBER
item operated
located in the administrative territorial entity
inception
headquarters location