G98 notification for a plug-in kit

This is the step people skip, because a plug-in kit feels like an appliance rather than an installation. It plugs into a socket; nothing is drilled; no electrician appears.

But the kit is generating electricity and pushing it into a public distribution network, and the operator of that network is entitled to know what is connected to it. That is what G98 is for.

Notification, not application

The distinction matters and it is good news.

G98 covers generation up to 16A per phase at low voltage: commonly stated as 3.68kW at 230V. For the standard single-premises route, the ENA says the installer can commission first and must notify the DNO within 28 days. There is no connection approval to wait for when the installation stays within that route.

G99 covers anything above that. There you must obtain approval before installation, and it can come back with conditions. This is why a larger roof array is a slower process than a plug-in kit, and one of the reasons installers ask about your existing generation.

An 800 VA plug-in kit sits comfortably inside G98.

Your DNO is not your supplier

There are six DNO groups in Great Britain, plus NIE Networks in Northern Ireland:

| Operator | Broadly covers | | --- | --- | | UK Power Networks | London, the South East, the East of England | | National Grid Electricity Distribution | The Midlands, the South West, South Wales | | Northern Powergrid | The North East, Yorkshire, northern Lincolnshire | | Electricity North West | The North West | | SP Energy Networks | Merseyside, North Wales, central and southern Scotland | | Scottish and Southern Electricity Networks | Southern England, northern Scotland | | NIE Networks | Northern Ireland |

If you are not sure which applies, the first two digits of your MPAN: the long number on your electricity bill: identify the distributor, and your supplier’s customer service can confirm it in a minute.

What the form asks for

Very little:

• Your MPAN, from your electricity bill.
• The installation address.
• The inverter make and model.
• Its rated AC output: the 800 VA figure.
• The date it was connected.

The exact evidence and submission route depend on the DNO and equipment. ENA Connect Direct provides a common route for installers, while some DNOs publish their own forms. Do not assume the retail checkout completed the notification: keep the DNO or ENA confirmation.

Northern Ireland

SI 2026/848 applies to Great Britain. Northern Ireland has its own regulatory framework and NIE Networks handles connections there, so do not assume the GB position transfers. Ask NIE Networks directly before connecting anything.

Check whether guidance applies to Great Britain or the whole United Kingdom.