Installing an EV Charger at Home: What You Need to Know

Home EV charger installation is more involved than it might appear. A dedicated circuit, correct earthing, and proper certification are all essential — here is what the process involves and why a qualified electrician is essential.

Do I need a dedicated circuit?

Yes. An EV charger draws a significant and sustained current — typically 7kW for a standard home charger. This requires a dedicated circuit from your consumer unit, correctly sized for the load. Connecting a charger to an existing circuit is dangerous and will likely cause nuisance tripping.

What does the installation involve?

A typical home EV charger installation includes:

• ⚡Assessment of your consumer unit to confirm it has capacity for an additional circuit
• ⚡Running a dedicated cable from the consumer unit to the charging point location
• ⚡Installing the charging unit (either supplied by you or by us)
• ⚡Installing a dedicated MCB in the consumer unit
• ⚡Earthing and bonding checks
• ⚡Full testing and certification

What about the consumer unit?

If your consumer unit is already full or is an older model without adequate RCD protection, it may need upgrading before an EV charger can be installed. We will assess this during the initial survey.

OZEV grant — is it still available?

The OZEV (Office for Zero Emission Vehicles) grant for home EV charger installation was closed to homeowners in April 2022. It remains available for renters and flat owners in certain circumstances. We can advise on current eligibility during the survey.

Smart chargers and load management

Modern smart chargers can be scheduled to charge during off-peak tariff periods, monitored via an app, and integrated with solar panels. If you have a solar installation or are considering one, a smart charger with load management can significantly reduce your running costs.

Does it need to be certified?

Yes. EV charger installation is notifiable work under Part P of the Building Regulations. You must receive an Electrical Installation Certificate and the work must be registered with your local authority. An unregistered installation can cause problems with your home insurance and when selling your property.

Brad Neil Electrical installs home EV chargers across Surrey. Call 07415 834215 for a free survey and quote.

Brad Neil

NICEIC Registered Domestic Installer · Brad Neil Electrical · Surrey