DNO applications
Getting the grid to say yes.
Every generator, battery and large new load needs the network operator's agreement. We prepare and submit the applications, answer the technical questions and manage the process with SSEN and other DNOs until you have the connection offer in hand.
Applications
What we handle.
G98 notifications
Small generators up to 16 A per phase, notified after installation.
G99 applications
Larger solar, batteries and combined systems that need approval before connection, including export limitation schemes.
New supplies
Applications for new connections to new builds, outbuildings and sites, with the load assessment the DNO asks for.
Supply upgrades
Single-phase to three-phase and fuse upgrades for EV charging, heat pumps, fit-outs and machinery.
Technical queries
Inverter data, protection settings, single-line diagrams and site plans provided and questions answered.
Through to connection
Offer review, acceptance, and coordination with the DNO's works and our installation.
Timescales
What to expect.
We usually submit within a few working days of having the site details. The DNO then has a statutory window to respond, typically up to 45 working days for a G99 application, and new supply quotations follow their own timescales. We chase on your behalf and keep you updated.
- Application prepared and submitted by us
- Statutory response window managed and chased
- Connection offer explained in plain English
- Works coordinated with the installation
Good to know
Common questions.
Do I need a G99 application for a battery?
Most battery systems exceed the G98 limit once combined with solar, so a G99 application is usually needed before the system can be connected. We assess it and apply for the right one.
Can you apply for a supply upgrade on a house?
Yes. Typical reasons are an EV charger plus a heat pump, or an electric shower and hob on a small fuse. We check whether load management would avoid the upgrade first.
Is this only for systems you install?
No. We prepare DNO applications as a stand-alone service for other installers, developers and property owners.
Start an application
Tell us what you are connecting.
The site address, the existing supply if known and what you want to add are enough to start. Prefer to talk? Call 0330 320 1500.