Bengeworth Road

Latest news: UK Power Networks’ new substation

UK Power Networks will be hosting two public engagement events in June to share emerging designs for its new substation at Bengeworth Road.  This is part of the wider London Power Tunnels project in conjunction with National Grid, and will connect the site to National Grid’s transmission network. 

These works are vital to meet increased energy demand in the capital, and to ensure the system is future-proofed for the next 50 years.

More information is available on UK Power Networks’ Bengeworth Road page, including details for both events, at which residents will be able to view designs and ask the UK Power Networks team questions.  

  • Wednesday 15 June, 6pmonline event via Microsoft Teams

  • Saturday 18 June, 11am-2pm – drop-in event at The Cambria pub in Kemerton Road

As of June, UK Power Networks will also host Community Liaison Group (CLG) meetings for the duration of its engagement period. 

For GDPR reasons, please contact [email protected] to sign up to UK Power Networks’ mailing list, and receive details of the UK Power Networks CLG meetings.  National Grid will be present at these meetings, and minutes and presentations will continue to be hosted on this page. 

Public information sessions, February 2022

Throughout February 2022, National Grid held three online engagement events to present the community with three proposed design options for our new headhouse and substation designs. 

Due to the ongoing Covid-19 pandemic we were unable to hold these events in person, however, we held three virtual events detailing all proposals, and had the virtual designs online for a two week period in February.

We then gathered feedback from residents, the findings of which will help the project team determine which design option to progress with. We will share further updates on the outcome of the feedback and the option we go for on this page.

Although the window to provide feedback has now closed, you can still view the feedback options here. If you have any technical issues or would like to talk through the plans over a phone call, please call 0800 783 2855 or email [email protected].


Bengeworth Road



UK Power Networks, the electricity distribution company which distributes electricity to consumers in the London area, requires National Grid to build a new connection to its high-voltage electricity transmission network, which we have a legal obligation to provide.

To achieve this, we need to build a tunnel access shaft, substation and headhousewithin UK Power Network’s existing substation site boundary at Bengeworth Road to connect to our London Power Tunnels (LPT) route.

By doing this work now as part of the tunnelling project, overall disruption will be minimised as UK Power Networks will not need to replace their existing cables which currently run beneath the local road network.

Key milestone achieved at Bengeworth Road

National Grid has been working on the site since Spring 2021 and since this time we have:

  • Installed a temporary welfare and office accommodation block
  • Completed the construction of the deep vertical tunnel access shaft which will connect the site to the new London Power Tunnels
  • Secured a traffic diversion route through Kings College Hospital to significantly reduce the number of HGV movements on residential roads
  • Achieved a negative screening assessment from Lambeth Council, which incorporates several measures to reduce the impact of our essential works on the local community
  • Signed a Unilateral Undertaking with Lambeth Council, allowing our work to be closely monitored, including air quality levels.

Working hours

Our current working hours are:

  • Monday-Friday 8am to 6pm
  • Saturday 8am to 1pm

Construction traffic

We are minimising our construction traffic by:

  • Using Kings College Hospital (KCH) Business Park for all HGV access to site, unless a hospital emergency means it is not available to use.
  • Avoiding construction vehicles entering and leaving the site at peak times.
  • Only vehicles notified in advance will be allowed on to site. All construction and managerial parking will be provided onsite to avoid any queuing or parking on residential streets.


  • August 2021 – January 2022 – Shaft works
  • February 2022 – Engagement with local residents on substation and headhouse design
  • May 2022 – Below ground works complete
  • 2023 – 2025 – Substation and headhouse construction
  • 2026 – Work complete

Community relations

We are committed to keeping the local community informed about our plans. Over December 2020 and January 2021, we held three public engagement events with local residents.

Following this, we set up a Community Liaison Group (CLG) to work closely with residents and provide them with an opportunity to have any questions answered by the project team. Throughout 2021, we held seven CLG meetings and will continue to hold them regularly in 2022 too.

You can access all presentations and minutes from previous events and meetings below.


Field worker inside london power tunnels

Contact us

If you would like to discuss the project in greater detail or have any questions, please contact our community relations team using the details below:

Call our Freephone helpline number: 0800 783 2855 (lines open 9am to 5pm, Monday to Friday)

Email: [email protected]