Plug-in solar is now legal to use in Great Britain. SI 2026/848 came into force on 27 August 2026 and Ofgem has approved the G98 connection changes — only kits listed on the ENA Type Test Register may be used, and Northern Ireland is not covered. Read the UK legal status

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DIY & self-install

DIY & self-install solar in the UK

Your self-install options in the UK, the spectrum from genuinely plug-in to fixed installations, and — most importantly — where a qualified electrician is required.

Written and edited by Christopher Panteli

Christopher is the founder and editor of MyPlugInSolar. He oversees the site’s research standards, data tools and editorial process. He is not an electrician or solar installer, and specialist technical claims are sourced from official documentation or reviewed by appropriately qualified professionals.

DIY and self-install solar covers everything from a genuinely plug-in system you set up yourself to a fixed rooftop array that mostly needs professional work. The key is knowing which end of that spectrum you are on, because the safety and legal requirements are very different.

Before going further, one essential point: Plug-in solar has been legal to use in Great Britain since 27 August 2026, when SI 2026/848 came into force alongside Ofgem-approved changes to the G98 connection code — provided the kit is listed as compliant on the ENA Type Test Register. Northern Ireland is not covered. We cover the detail on the UK legal status page.

The self-install spectrum

At one end, a genuinely plug-in arrangement is designed to be set up by the householder with no fixed-wiring work. At the other end sits a fixed rooftop installation: panels bolted to the roof, wiring run into the home and a connection made at the consumer unit. Most of that fixed-end work is not a DIY task. In between are partial kits where some assembly is reasonable but the electrical connection is not.

Legal to use in Great Britain since 27 August 2026

Plug-in solar has been legal to use in Great Britain since 27 August 2026, when SI 2026/848 came into force alongside Ofgem-approved changes to the G98 connection code — provided the kit is listed as compliant on the ENA Type Test Register. Northern Ireland is not covered. See the full legal status and sources.

Where the line is

The single most important distinction is between work a competent person can reasonably do and work that requires a qualified, registered electrician. As a guide:

  • Reasonable self-tasks — assembling supplied mounting hardware, positioning panels and following the manufacturer's instructions for non-wiring steps.
  • Requires a qualified electrician — any fixed-wiring connection, consumer-unit changes, new circuits or other notifiable work under the Building Regulations.

We do not provide steps for modifying fixed wiring, altering plugs or defeating protective devices. That work carries real risk of fire and electric shock and must be done by someone qualified, to BS 7671 (the UK Wiring Regulations). For more on this boundary, see do you need an electrician for plug-in solar.

Notifying your network operator

Generation that connects to the grid is normally notified to your Distribution Network Operator under the Energy Networks Association G98 framework for small systems (or G99 for larger ones). For plug-in systems this is now settled: the interim product specification makes notifying your distribution network operator of connection and disconnection mandatory, and the device must be type tested to G98 and listed as compliant on the ENA Type Test Register.

Pros and cons of self-install

Pros

  • Lower upfront cost where the work is genuinely within reach
  • Movable, simpler systems can suit renters, flats and gardens
  • No scaffolding or major works for the smallest arrangements
  • Hands-on control over positioning and monitoring

Cons

  • Connection standards (G98, BS 7671) for everyday use are still being finalised
  • Fixed-wiring work is not a DIY task and needs a registered electrician
  • Getting it wrong risks fire, electric shock and invalid insurance
  • Notification and certification rules are still being settled

Safety and compliance

Do not attempt fixed-wiring connections, consumer-unit changes or any notifiable electrical work yourself, and never modify plugs or defeat protective devices. Use a qualified, registered electrician working to BS 7671 and follow the manufacturer's instructions. Plug-in solar has been legal to use in Great Britain since 27 August 2026, when SI 2026/848 came into force alongside Ofgem-approved changes to the G98 connection code — provided the kit is listed as compliant on the ENA Type Test Register. Northern Ireland is not covered.

Frequently asked questions

Can I install solar panels myself in the UK?
It depends on the work. Genuinely plug-in arrangements involve no fixed wiring, but anything that touches your fixed wiring, consumer unit or notifiable electrical work should be carried out by a qualified, registered electrician working to BS 7671.
Is plug-in solar legal to self-install right now?
Plug-in solar has been legal to use in Great Britain since 27 August 2026, when SI 2026/848 came into force alongside Ofgem-approved changes to the G98 connection code — provided the kit is listed as compliant on the ENA Type Test Register. Northern Ireland is not covered. Whatever the legal position, self-installing fixed wiring is notifiable work for a qualified, registered electrician.
Do I need to tell my network operator?
Generation that connects to the grid is normally notified to the Distribution Network Operator under the Energy Networks Association G98 or G99 framework. For plug-in systems this is now settled: the interim product specification makes notifying your distribution network operator of connection and disconnection mandatory, and the device must be type tested to G98 and listed as compliant on the ENA Type Test Register.
What work must a qualified electrician do?
Any fixed-wiring connection, consumer-unit changes, new circuits or other notifiable work should be done by a qualified, registered electrician. Do not modify fixed wiring, alter plugs or defeat protective devices yourself.

Sources

  1. 1. BS 7671 Wiring Regulations — Institution of Engineering and Technology
  2. 2. Connecting generation (G98 / G99) — Energy Networks Association
  3. 3. Microgeneration Certification Scheme — MCS

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