How-to Guide
How to get your G98 or G99 certificate online
There's no literal G98 or G99 certificate, just the DNO's written confirmation. How to apply online, what it costs and how long each route takes.
Jamie Duncan
8 October 2026
DNO Compliance
8 articles tagged with DNO Compliance
How-to Guide
Who is my DNO, and do you actually need to know?
Your DNO is whoever owns the network at the property, not the energy supplier. How to look it up, and when you don't have to.
Jamie Duncan
6 October 2026
Blog
G99 Fast Track: the quicker DNO connection route
The G99 Fast Track process connects small generation and storage installations in around 10 working days instead of a full G99 assessment. The three SGI categories, the forms, and the details that keep an application moving.
Jamie Duncan
5 October 2026
How-to Guide
DNO 'further information required': what happens next
'Further information required' is not a rejection. What the status means, where the DNO actually contacts you, and what it does to the 45-working-day clock.
Jamie Duncan
7 September 2026
Blog
G98 vs G99: what decides which one you need
G98 and G99 are decided by one number: 16A per phase, measured across everything installed at the property, not per device. The comparison table, the G99 Fast Track route that sits between the two, and the design-capacity rule most guides get wrong.
Jamie Duncan
31 August 2026
How-to Guide
DNO works required: what the status means and what to do while you wait
Payaca now shows the DNO's own reasons on a 'works required' connection application, so installers know whether they're waiting on paperwork or a network upgrade.
Jamie Duncan
24 August 2026
How-to Guide
Export limitation: the G100 route that gets a bigger job connected on a constrained grid
When a full-export G99 connection would be refused or need reinforcement, an export limitation scheme (ENA EREC G100) keeps the job alive. Here is how it works and how to track it across a busy install schedule.
Jamie Duncan
24 July 2026
Blog
G99 applications: when you need one, and how to get it approved first time
A G99 application covers any system above the G98 threshold and has to be approved before you install. What triggers one, how long approval takes on each network, and the errors that send it back.
Jamie Duncan
29 June 2026