01
Law status board
Where UK plug-in solar stands right now — updated the day anything moves.
Status · verified 9 Sep 2026 against SI 2026/848
True plug-and-play DIY kitLegal route open — needs an IPS v2 device
800W hardwired (CPS electrician + G98)Legal today
SI 2026 No. 848 (≤800W + IPS v2, in force 27 Aug 2026)Law made 16 Jul 2026
—the plug-in solar rules are now in force — see the news page for what the law requires
Two kinds of email. Nothing else.
One email when devices change status on the ENA type test register, never more than one a week, and one on the day the law changes. Nothing else.
No spam, no weekly newsletter. Register changes and the legal go-live, nothing else. Unsubscribe anytime.02
Before / After
The whole idea in one picture: same balcony, one panel added — your flat uses the free solar first.
Before100% from the grid · ~27p/kWh
→
After≈600–900 kWh/yr → saves £130–£200/yr
03
What would your balcony make?
Rough number in five seconds. The full calculator does orientation, price cap and payback.
Two sliders. That’s it.
Model: UK yield ≈0.9 kWh/W/yr × exposure, valued at the ~27p/kWh cap, self-consumption only (no SEG).
Estimated saving
£—
per year, at the current price cap
≈ £— over 10 years
panels last 20+ years · typical payback 3–4 yrs
🌍 — kg CO₂/yr avoided (≈— trees)
☕ — cups of tea
🔋 — phone charges
every kWh you make is a kWh you don’t buy — whatever the price cap does next
Full calculator →
04
Everything, in its place
Every guide on this site, filed under exactly one of five drawers. No hunting.
§1
Legal & rules
§2
Install & G98
§3
Kits & gear
Editorial principle
We never publish “just plug it in, fully legal now” copy. Spotted a change in the law? Tell us — we update.