Step 3: Detailed design, grid connection and pre-construction

Grid connection application process

Some sites may require a grid upgrade to deliver EV charging. National Grid outlines the detailed process for applying for a grid connection. The grid connection process follows a clear sequence from early enquiry to final switch‑on. This is a summary of what they advise:

1 Pre-application enquiry

Early discussion with the grid operator to understand requirements and feasibility.

2 Formal application

Submit technical details and expected demand, and pay any application fees.

3 Review and assessment

The grid operator carries out studies to check grid capacity and safety impacts.

4 Connection offer

You receive terms, costs, required upgrades and delivery timescales.

5 Contract signing

Accept the offer and formalise responsibilities on a connection agreement.

6 Installation and compliance

Install equipment and pass inspections against technical and safety standards.

7 Turn-on and commissioning

The connection is energised and becomes operational.

 

When going through the application process, remember to:

  • Have all your documents ready (including a site location plan, a site layout plan, An Energy Networks Association (ENA) EV/HP application form if you are installing electric vehicle charging and/or heat pump installations).
  • Plan your upgrade costs.
  • Engage your DNO early to avoid delays.
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