London Power Tunnels Substation Takes Delivery of the United Kingdom’s First SF6-Free Switchgear
London Power Tunnels' £1 billion investment to future-proof the capital's electricity supply.
Image for illustration purposes.
London’s power infrastructure is undergoing a significant upgrade with the arrival of two 170-tonne supergrid transformers at a new substation in Hurst.
The supergrid transformers play a crucial role in the power network, stepping down high voltage electricity from the national transmission network to a lower voltage suitable for local distribution. Their installation marks a major milestone in the project, which aims to rewire London via a network of underground tunnels, minimising disruption to the city’s residents.
Alongside these transformers, the substation is set to house the UK’s first SF6-free 400kV gas-insulated switchgear. SF6, or sulphur hexafluoride, is a potent greenhouse gas commonly used in electrical equipment for its insulating properties. The new switchgear uses a greener alternative, significantly reducing the substation’s environmental impact.
This technological advancement aligns with National Grid‘s commitment to reducing its carbon footprint. The company aims to reduce its SF6 emissions by 50% by 2030 and remove all SF6 gas from its network by 2050. The installation of this eco-friendly switchgear in London is a significant step towards achieving these goals.
The London Power Tunnels project, spanning 32.5km, is designed to meet the growing electricity demand in the capital. It will provide essential infrastructure to support London’s sustainable growth, including the increasing adoption of electric vehicles and heat pumps.
Source: National Grid
#Climate Change Mitigation#electric vehicle infrastructure#electrical engineering#electrical infrastructure#Energy demand management#environmental sustainability#greenhouse gas reduction#high-voltage transmission#London Power Tunnels#power distribution#power grid modernisation#power system reliability#renewable energy integration#SF6-free switchgear#smart grid technology#substation technology#supergrid transformers#sustainable energy#urban planning#urban power networks