National Grid has successfully energised the first circuit of its ambitious London Power Tunnels 2 (LPT2) project, marking a significant milestone in the £1 billion initiative to rewire London through underground tunnels. This phase includes a 2.5 km high voltage 275 kV network between Hurst substation and Crayford, with Linxon providing Engineering, Procurement, and Construction works at both sites.
UK Energy Minister Michael Shanks honoured the occasion with a special visit, as the first of six new electricity transmission circuits installed deep beneath South London was made live. This event underscores the importance of the LPT2 project in reinforcing the city’s power infrastructure.
Construction is also underway on a new substation at Bengeworth Road along the 32.5 km LPT2 route. This substation, a UK-first, features SF6-free gas-insulated switchgear technology, supported by Linxon’s expertise and supply.
Alice Delahunty, President of National Grid Electricity Transmission, commented, “We were pleased to welcome the minister at such a milestone moment for London Power Tunnels, and demonstrate the ongoing work to reinforce the city’s network.”
Stefan Reisacher, CEO of Linxon, added, “We are proud to be supporting National Grid in the delivery of this critical infrastructure, providing secure and reliable power to London. The energisation marks a key milestone for the great collaboration between us and our client.”
Project facts
- Project inception: Spring 2020
- Duration: Six years
- Investment: £1 billion
- Scope: Rewiring South London via 32 km of deep underground tunnels
- Linxon key activities:
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- Design, supply, installation, and commissioning of protection and control panels
- Design and supply of new current and voltage transformers
- Modifications to the existing AIS busbar
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- Completion: The London Power Tunnels project is set to be complete by 2026, ensuring a robust and future-proof power supply for Southeast London.
- Benefits: Reduced construction disruption, highly accessible underground assets, and capacity for future power demand
