If you’re installing a solar PV system above 3.68kW, you’ll likely need a G99 DNO Application — and while it might seem complex, it doesn’t have to be. At GridConnect Support, we make the process smooth, clear, and hassle-free.
What is a G99 DNO Application?
A G99 application is required when connecting larger electricity-generating systems — like solar PV arrays — to the UK grid. It ensures your local Distribution Network Operator (DNO) can safely manage the energy your system will export.
You’ll need a G99 if:
- Your system is above 3.68kW per phase
- You’re installing battery storage
- You’re dealing with larger residential or commercial installs
What’s Involved?
The G99 process includes:
- The MPAN (Meter Point Administration Number)
- A signed Letter of Authority (LOA)
- A site curtilage plan showing the meter location
- A schematic diagram of your setup
- Details of your solar panels, inverters, and system size
After submission, the DNO will review and either approve, ask for changes, or request further clarification.
The Step-by-Step Process
Step 1: We collect your details
You provide basic information — we handle the technical paperwork and diagrams.
Step 2: We liaise with the DNO
From submission to follow-up, we communicate directly with the DNO so you don’t have to.
Step 3: You get results, not admin
We pass along DNO feedback and requirements, support with any export limitations, and finalise paperwork like the A3 commissioning form after install.
What Makes GridConnect Support Different?
GridConnect was created by Sophie, a solar operations specialist with 8+ years of hands-on industry experience. After seeing how frustrating and time-consuming DNO admin could be, she built a service that takes it off your plate.
We offer:
- Full-service G99 submission, including LOA, diagrams, and customer communication
- Documentation-ready support if you already have the paperwork
- G98 Notification handling for smaller systems
- Support for ongoing installers, including monthly retainers for volume clients
Save Time. Reduce Admin. Get Connected.
Let GridConnect handle your DNO paperwork from start to finish — so you can stay focused on what you do best: installing great solar systems.
- Contact us today to start your G99 application
- Or view our packages for more support options