The Learn Hub
Everything solar, in plain English
Short, honest UK guides — no sales pitch. Sunny reads them too.
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Basics · 6 min read
How Solar Panels Actually Work
How a solar panel turns sunlight into the electricity your home uses.
Myths · 4 min read
Do Solar Panels Work on Cloudy Days?
Solar panels still work on cloudy days, just at a lower output.
Money · 7 min read
Solar Panel Payback Period in the UK, Demystified
How to find the year your panels stop costing money and start making it.
How-to · 8 min read
How Many Solar Panels Do You Actually Need?
A simple way to size a solar system to your real electricity bill.
Money · 7 min read
Solar Batteries: Are They Worth It in the UK?
When a solar battery pays for itself in the UK, and when it's just peace of mind.
Products · 5 min read
Portable Power Stations: A Beginner's Guide
The plug-and-play side of solar, useful for camping and for power cuts.
Policy · 6 min read
The Smart Export Guarantee, Explained Like You're Busy
How the SEG scheme pays you for the solar power you send to the grid.
Money · 8 min read
Are Solar Panels Worth It in the UK? (2026)
The honest 2026 answer on when solar pays off for UK homeowners, and when it doesn't.
Policy · 5 min read
Will the 0% VAT on Solar End? The 2027 Deadline
The 0% VAT on home solar and batteries ends 31 March 2027.
Myths · 5 min read
Five Solar Myths, Busted by Sunny
No, panels won't wreck your roof, and yes, they work in winter.
Policy · 9 min read
Plug-In Solar in the UK: What You Can and Cannot Do
A plain guide to what's allowed, what's banned, and what you must do before you plug one in.
Policy · 5 min read
Is Plug-In Solar Legal in the UK?
Yes in Great Britain since 27 August 2026. Not yet in Northern Ireland.
Basics · 6 min read
How Do Plug-In Solar Panels Work?
The four parts, in plain English, and why it cuts your grid bill.
Policy · 6 min read
The 800W Plug-In Solar Rule, Explained
800 watts is the legal cap, but today's real limit is one device per home.
How-to · 5 min read
Do You Have to Tell Your Network Operator?
Yes, it's mandatory, free, and quick. Do it before you plug in.
Policy · 4 min read
Is Plug-In Solar Legal in Northern Ireland?
Not yet. The new law switched plug-in solar on in Great Britain only.
How-to · 6 min read
Can You Add Plug-In Solar to Existing Solar Panels?
Allowed, if everything at your address stays under 16 amps. A full roof usually doesn't.
Products · 7 min read
Which Plug-In Solar Kits Are Approved?
Nine kits on sale, what they cost, who's sold out, and how to check any of them yourself.
How-to · 6 min read
Plug-In Solar for Flats and Balconies
The building surfaces and mounting rules that decide if you can fit one.
How-to · 6 min read
Plug-In Solar for a Shed, Fence or Flat Roof
Where a plug-in kit can go outside your home, and where it can't.
Money · 6 min read
Plug-In Solar vs Rooftop Solar
How the two options compare, so you can pick the right one.
Money · 6 min read
What Plug-In Solar Costs, and What It Saves
Real shop prices, the government's own savings figures, and the VAT catch.
Money · 6 min read
Is Plug-In Solar Worth It in the UK?
The payback sums for a cheap kit, a pricey kit, a sunny spot and a poor one.
Products · 6 min read
Where to Buy Plug-In Solar in the UK (and Is Lidl Selling It Yet?)
Which shops have kits right now, what they charge, and what to check before you pay.
Products · 5 min read
Plug-In Solar With a Battery: Can You Do It in the UK?
What the rules say about batteries, and why one wouldn't pay for itself anyway.
Basics · 4 min read
Can Plug-In Solar Charge an Electric Car?
About three to eight miles a day. Here's the maths.
Products · 5 min read
Octopus Plug-In Solar Kit: What It Costs, Saves and Pays Back
One panel for £450, two for £650, and the only kit that can earn export pay.
Products · 5 min read
Solarfy Plug-In Solar Kit: Solo 455 and Duo 910 Compared
Solo at £449, Duo at £599, a ballast mount for gardens and flat roofs, and one blank on the warranty.
Products · 5 min read
PatioSun Plug-In Solar Kit: Lite, Lite PLUS, Duo and Max
A £449 kit with a ground stand in the box, and a made-to-order wait.
Products · 5 min read
Modular Solar Plug-In Kit: 340 W and 475 W Units
340 W for £465 is poor value per watt. The 475 W unit is better, but still slow to pay back.
Products · 5 min read
Thunder Energy Bolt Plug-In Solar Kit: 460 W and 920 W
Bolt 460 W at £549.99, Bolt 920 W at £749.99, with a 25-year panel warranty.
Products · 5 min read
City Plumbing DMEGC Plug-In Solar Kit: Price, Savings and Payback
Four DMEGC kits from £336 to £480, the cheapest we could verify, with the sums for each.
Products · 5 min read
Perlight PowerPlug Plug-In Solar Kit: Price, Savings and Payback
Four Perlight PowerPlug MAX kits from £588 to £810, and why the single panel is hard to justify.
Products · 5 min read
UKSOL Plug-In Solar Kit (Also Sold at Argos): Price and Payback
Five UKSOL kits from £599 to £989, also listed at Argos, with the sums for each.
Products · 5 min read
Screwfix PowerXpress Plug-In Solar Kit: Price, Savings and Payback
The £669 Screwfix kit: two 460 W panels, a bracket in the box, and a one-year guarantee.
Money · 7 min read
Best SEG Rates in the UK, by Supplier (October 2026)
Who pays the most for your spare solar power, and what you have to do to get it.
Not in the UK? See balcony solar in the US or plug-in solar in Ireland.