The UK’s guide to
balcony solar panels
Independent, accurate advice on balcony solar panels and plug-in systems for renters and homeowners. Compare systems, calculate savings, understand UK regulations.
£400–£950
Typical system cost
£70–£110
Gov. estimated annual saving
6–10 years
Payback period
300–800W
Typical system size
Plug-in solar becomes legal in the UK on under SI 2026 No. 848.
What is it?
What is balcony solar?
Balcony solar panels — also known as balcony power stations or Stecker-Solar (plug-in solar panels) — are compact photovoltaic systems designed to be mounted on a balcony railing, flat roof edge, or garden fence. They require no rewiring or professional electrician.
Here’s how they work: sunlight hits the solar panels, which feed electricity to a micro-inverter that converts DC power to the 230V AC your home uses. You plug the system into a standard 13-amp socket, and from that moment your home draws less electricity from the grid — reducing your bill automatically.
A typical UK system runs at 300–800W, costs between £400 and £950, and can save a household £80–£200 per yeardepending on usage, orientation and local irradiance. The government’s own published estimate is more conservative, at £70–£110 a year.
No electrician required
£400–£950
Typical system cost
£70–£110
Gov. estimated annual saving
6–10 years
Payback period
300–800W
Typical system size
Popular in Germany, growing in the UK. Germany now has over 1.2 million balcony solar installations. The UK is catching up — SI 2026 No. 848 brings the plug-in route into force on 27 Aug 2026.
Learn
Essential guides
Whether you’re just getting started or ready to buy, our guides cover everything you need.
Beginner's Guide to Balcony Solar
Everything you need to know to get started with plug-in solar panels in the UK.
Read guideGuide for Renters
Can you install balcony solar as a renter? Here's how to go about it.
Read guideIs It Legal in the UK?
Plug-in solar becomes legal on 27 Aug 2026 — the rules, the limits and what they mean.
Read guideMounting Guide
How to safely attach panels to your balcony railing or wall.
Read guideHow Much Can You Save?
Realistic UK savings figures broken down by region and usage pattern.
Read guideG98 & DNO Guide
Do you need to notify your Distribution Network Operator? Here's the answer.
Read guideReviews
Top-rated balcony solar systems
Our reviews aggregate opinions from verified buyers, independent testers and energy experts across the UK.
Two routes, not one. Systems with a built-in battery are excluded from the new plug-in rules, so they take the conventional route — fitted by a qualified electrician and notified under G98 (why batteries are excluded). Panels-plus-microinverter kits can use the self-install plug-in route from 27 Aug 2026, but only once a specific kit is verified — and none is yet (see the certification tracker).
EcoFlow STREAM Microinverter
From ~£149 · 800W output · Best app + modular battery
Needs an electricianThe EcoFlow STREAM microinverter combines panels, inverter and app monitoring in one slick package. Our top pick for most UK households — though once you add the modular battery it sits outside the plug-in specification, so an electrician fits it and notifies it under G98.
Read reviewAnker SOLIX
£899 · 800W · High output
Needs an electricianThe 800W output makes the Anker SOLIX the highest-generating balcony system available in the UK, ideal for south-facing balconies. Its built-in battery keeps it on the conventional route, so budget for an electrician.
Read reviewPlug-in Solar 600W Kit
£399 · 600W · DIY kit
Plug-in route (once certified)A no-frills DIY kit that delivers solid results at a fraction of the price. Panels and a microinverter only, so it is the kind of kit the plug-in route covers — once a verified model reaches the register.
Read reviewCompare all UK kits side by side
See a full comparison table covering price, wattage, inverter type, app support and more.
Our reviews are curated aggregations linking to independent sources. We do not host retailer reviews directly.
Find out how much you could save
Our free savings calculator uses real UK solar irradiance data and your household profile to estimate your annual savings and payback period.
Use the free calculatorFor Renters
Renting? You’re not forgotten.
There are an estimated 4.4 million private rented households in England alone. For too long, access to solar energy has been restricted to homeowners. Balcony solar changes that.
Because these systems plug in rather than connect to your wiring, many renters can install them without landlord permission — though we always recommend having an honest conversation with your landlord first. Our renter’s hub covers everything from legal rights to a ready-made letter template you can send today.
Renters' Rights Act 2025