Our response to coronavirus

Find out how we're working to keep the electricity and gas flowing reliably throughout the outbreak.

Researching your connection

Here you’ll find information on how to get connected to the transmission system and guidance with your application to the Electricity System Operator (ESO). This short video will show you how to approach your connection research.

Researching your connection

Before you submit an application to connect to the electricity transmission system, please explore what your connection requirements are, such as:

  • Connection type 
  • Location
  • Connection size 
  • Planning consents
  • Connection date 
  • Cost of the connection

To help your research, take a look at our research assistant tools that combine our cost estimator and capacity map tools. These tools will show you potential locations that could meet your needs, and an estimated cost of the connection.

We've also put together a document that talks you through the connections journey, step by step.

Due to the COVID-19 pandemic you may have uncertainties about your connection application or are considering modifying your application. Please take a look at our Frequently Asked Questions to assist you with any concerns you may have.

Customer checklist

  • Do you know the technical scope of your connection e.g. your connection size?
  • Do you know if your project has planning consents requirements?
  • Do you understand the costs of your connection?
  • Have you looked at the ESO Connection Registers to understand existing network connections? 

If you have answered no to any of these questions, please make an enquiry, we’re here to help.

Stage 2 of the connection process

Go to the next stage, applying to connect.

Supporting information


Have you got a question about this stage?

Go to FAQs

Connections application guide

If you’re applying to connect to the transmission system in England and Wales, then our handy guide will help you complete your National Grid ESO application form.

Download guide