What are we applying for?

We are submitting a planning application for the construction of a new substation next to our existing facility in Iver. Our application will be covered by the Town & Country Planning Act.

What is a substation?

Electrical substations convert electricity into different voltages so it can be transmitted throughout the country to local homes and, businesses. They play a vital part in effectively transmitting electricity through our national system. 

Why is a new substation needed?

This substation is needed to connect several new customers to our transmission network to meet a significant increase in electricity demand to the west of London, predominantly from new data centres. As a regulated business, we have a legal obligation to connect customers to our network when a connection is requested.  More detail is available here.

How long will the planning process take?

We are aiming to submit our application in December 2023, and anticipate a decision to be taken by Buckinghamshire Council in spring 2024.

How long will the substation take to build?

Following a successful planning application, we would expect a substation of this type to take up to three years to build.

What will be the impact on local residents?

We are committed to minimising the impact of our essential works on local communities. This included reducing noise activities and minimising construction traffic thought the implementation of a traffic management plan.  Further details will be available on this during the public consultation.  We are also committed to leaving a positive legacy where we work. Once details of our plans are confirmed, we will work with the community to see how we can support local groups and initiatives across Iver. 

How can you feedback on the plans?

Our public consultation on these proposals closed on 6 October.  We are reviewing and considering all the feedback we have received, which will help to shape our plans and the positive legacy we are able to leave for the community.  We are planning to submit our planning application towards the end of 2023, and which time the community feedback and our responses to it will be available to view as part of our Statement of Community Involvement submitted with the application.  A further opportunity to feed back will be available as part of the Council’s statutory consultation when the application has been submitted.  In the meantime, if you wish to contact the team, please use the details at the bottom of this page.

How will your feedback be used?

All comments and feedback submitted as part of our public consultation will be considered and used to inform our proposals.  As part of the planning application we will prepare a report – a Statement of Community Involvement (SCI) – which will include and respond to all the queries and points shared. Your feedback will be used in line with GDPR regulations.


For more information, please get in touch:

Email: [email protected]

Telephone:0800 915 2494 (between 9am and 6pm, Monday to Friday)

Freepost RTBU-HAYY-LCUX, 7 Bayley Street, London WC1B 3HB (no stamp needed)