Do I Need a DNO Notification for an EV Charger?
If you are installing an electric vehicle charger at home or at a business premises, you may have heard about DNO notification.
In most cases, yes — your Distribution Network Operator (DNO) must be notified when an EV charger is installed.
If you are considering installation, you can find full details of our EV Charger Installation services in Altrincham.
What Is a DNO?
A DNO (Distribution Network Operator) is the company responsible for maintaining the electricity network in your area.
They manage the local infrastructure that delivers electricity to your property.
Why Does the DNO Need to Be Notified?
EV chargers can place significant additional load on the electrical supply.
The DNO must be aware of new high-demand equipment to ensure:
- The local network can safely support the load
- Your supply capacity is sufficient
- No upgrades are required
Is DNO Approval Required Before Installation?
There are two scenarios:
1. Notify After Installation
For many standard domestic installations (typically 7kW single-phase chargers), the installer can notify the DNO after the charger has been installed.
2. Apply Before Installation
Pre-approval may be required if:
- Your property has a limited supply capacity
- You are installing multiple chargers
- The charger exceeds standard domestic load
- You have an unusual supply arrangement
In these cases, installation may need to wait for DNO approval.
Who Handles the DNO Notification?
If the installation is carried out by a qualified EV installer, they will normally:
- Assess your supply capacity
- Determine notification requirements
- Submit the DNO notification on your behalf
This is part of a compliant installation process.
What Happens If the DNO Raises Concerns?
If your supply cannot safely support the charger, the DNO may:
- Request load management to be installed
- Recommend supply upgrades
- Impose installation conditions
Modern EV chargers often include load management systems that allow installation without upgrading the incoming supply.
Is DNO Notification a Legal Requirement?
Yes. EV charging installations must comply with UK electrical regulations, and DNO notification forms part of that compliance.
Failure to notify could create issues with:
- Insurance
- Future electrical upgrades
- Network safety
Does This Apply to Commercial EV Chargers?
Yes. Commercial installations may require more detailed assessment, particularly where multiple charge points are being installed.
Need a Compliant EV Charger Installation?
We provide professional EV Charger Installation in Altrincham, including full assessment, load calculations and DNO notification where required.