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:
Pre-application enquiry
Early discussion with the grid operator to understand requirements and feasibility.
Formal application
Submit technical details, expected demand, and pay any application fees.
Review and assessment
The grid operator carries out studies to check grid capacity and safety impacts.
Connection offer
You receive terms, costs, required upgrades, and delivery timescales.
Contract signing
Accept the offer and formalise responsibilities in a connection agreement.
Installation and compliance
Install equipment and pass inspections against technical and safety standards.
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.
