Last updated 9 November 2026.
Plug-in solar rules are new and they change fast. Plenty of pages online repeat what other pages said. We go to the source.
The sources we use
- Law. The statutory instrument or state bill itself, on legislation.gov.uk or the state legislature’s own site, including the date it comes into force.
- Regulators and network operators. Ofgem, the Energy Networks Association (for the G98 form), state utility commissions.
- Government guidance. DESNZ product specifications and announcements, state energy offices.
- Manufacturers. Product manuals and specification sheets, for watts, plugs and certifications.
News articles, blogs and AI answers point us to where to look. They are never the source of a fact on our pages.
What the marks mean
- The check mark. A small check next to a statement links to the official document it comes from. Hover or tap it to see the source and the year.
- “Verified” in the page header. The date we last checked every rule on that page, and how many official sources it rests on. The full list is at the bottom of each guide.
- Status labels. Legal means a law is in force. Signed, not in force means it has passed but has a start date still to come. No law yet means there is no law either way. Not allowed means a rule forbids it. Unknown (grey) means we could not confirm it from an official source yet, so we do not guess.
How often we check
We recheck the rules on a page when a law, regulator or network operator publishes something new, and at least every three months. The date in the header changes only when we have actually reread the sources.
What we will not do
We do not give legal or electrical advice. Where a rule depends on your landlord, your lease, your insurer or your network operator, we say so and show you how to ask.
Found something out of date? Write to [email protected] with the link to the official source and we will check it.