Plug-in solar guides
Understand
plug-in solar.
Straight answers to the questions UK buyers are asking — from whether plug-in solar is worth it to compliance, registration and the rules you need to know.
9 guides · Written by Mike · Updated 5 October 2026
Learn · Compare · Test
01 · Learn
Straight answers — you’re here
02 · Compare
ENA compliance and retailer prices →
03 · Test
Start here
Is plug-in solar worth it in the UK?
A straightforward look at what plug-in solar can and can’t do, who it may suit and what to consider before buying.
Guide · 3 min read
In this guide
When it makes sense
When it makes less sense
Why wattage isn’t everything
What to check before you buy
Guide · 9 min read
How much electricity does 800W plug‑in solar generate? →
Modelled yearly, daily and seasonal figures for Great Britain, and what makes your own result higher or lower.
Before you buy
Rules & compliance
What the law allows, and how to check a system meets it.
Guide · 5 min read
Is plug-in solar legal in the UK? →
What the law allows, what isn’t covered, and how to stay within the rules.
Guide · 5 min read
How to check if a plug‑in solar system is compliant →
What “compliant” means, how to check the official register, and what to do if you can’t find a model.
Guide · 8 min read
Plug‑in batteries UK: what you need to know →
What’s allowed today, why batteries were left out of the plug-in rules, and what happens next.
After you buy
Installing & registering
What to know before you connect your system.
Guide · 4 min read
Do I need to register plug‑in solar? →
Who registers what, when you need to register your device and how the official registration process works.
Guide · 6 min read
Do I need an electrician for plug‑in solar? →
What you can do yourself, which sockets are suitable, and when you need an electrician.
Your situation
Your home
Flats, balconies, landlords and freeholders, planning and insurance.
Guide · 8 min read
Balcony solar in the UK: what you can and can’t do →
Whether plug-in solar can go on your balcony: the building, the kit, the permissions and how much it could make.
Guide · 7 min read
Do I need planning permission for plug‑in solar? →
The rules for walls, balconies, fences, roofs and gardens, and when you need to apply.
Learn · Compare · Test
Ready to compare systems?
Check current ENA compliance, manufacturers and retailer pricing in the WattVerdict comparison.
Independent testing
Our independent 14-day testing programme is designed to measure real-world output in UK conditions, alongside reference sunlight data.