Solarfy Solo 455 – Complete UK Plug-in Solar Kit
Up to 5 m (5 m AC lead cable · 2 m solar DC cable) / Flat mount included
£399
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Solarfy Solo 455 – Complete UK Plug-in Solar Kit
Your own solar power – complete, delivered, plugged in.
£399
Taxes included.
Free 2-person delivery.
Flat mount includedAll cables includedFree delivery in 5–8 working days
How far is your nearest wall socket?
Mounting
Already have a frame or roof fixing? This kit ships without the Solarfy flat mount – panel, inverter and all cables are still included.
ENA register SOLAW/2164030-year panel warranty12-year inverter warranty14-day returns
Not sure how far? Here’s how to measure
Measure from where the panels will stand to the nearest fixed wall socket, indoors or outdoors. The cable can run under a door or through a window gap; the plug goes straight into the wall socket – never an extension lead. Need a new outdoor socket? That’s a job for an electrician. Still unsure? Ask us in the live chat (bottom right).
The kit’s AC lead cable is 5 m long and runs from the micro-inverter at the panels to your socket, so the standard kit reaches about 5 m. Each kit comes with one solar DC cable – 2 m as standard, or 5 m / 10 m instead if you choose it – which lets the panels stand up to 9 m or 14 m from the socket. Measure the route the cable will actually take (along walls and round corners), not the straight line.
- 455 W solar panel – ideal for smaller gardens, patios and flat roofs
- Everything included: panel, micro-inverter, flat mount, cables, guide
- Panel size: 1,762 × 1,134 × 30 mm (approx. 5 ft 9 in × 3 ft 9 in), 22 kg per panel
- Plugs into a normal fixed wall socket – no roof, no scaffolding, no installer for most homes
- Register in a few minutes at myplugin.solar – we show you how
- Around £50–£60 a year off your bill in a sunny spot*
- Battery-ready – technically compatible with plug-in batteries such as Zendure, Marstek, EcoFlow and Anker, as soon as UK rules allow them
Got space for two panels? The Duo gives you twice the solar for £150 more. See the Duo →
Included with every Solo
- Free 2-person delivery
- Setup & Registration Guide (PDF + video)
- Savings Planner
- Landlord / freeholder letter template
- UK live chat setup support
- 14-day returns
- 30-year panel warranty · 12-year Hoymiles inverter warranty
Flat mount included – for gardens, patios and flat roofs.
Delivery
Free 2-person delivery across Great Britain (not Northern Ireland), dispatched from Birmingham. Delivery takes 5–8 working days. Our freight partner will contact you to arrange a delivery slot, and you’ll receive tracking details as soon as your kit leaves our warehouse.
Returns & warranty
14-day returns, no reason needed. Hoymiles micro-inverter: 12-year manufacturer warranty. Solar panels: 30-year warranty.
How the Solo cuts your bill
Your fridge, freezer, router and everything on standby run 24/7. That constant base load is what the Solo is built for. The panel makes power whenever it’s light, the Hoymiles micro-inverter turns it into normal 230 V household power, and your home uses it first – before buying a single unit from the grid.
Everything included
What’s in the box
- Solar panel: 1 × 455 W monocrystalline glass-glass solar panel – 1,762 × 1,134 × 30 mm, 22 kg – 30-year panel warranty
- Micro-inverter: Hoymiles 800 VA micro-inverter (model as listed on the ENA register) – 12-year manufacturer warranty
- AC lead cable: 5 m AC lead cable with factory-fitted UK plug (Hoymiles)
- Solar DC cable: one solar DC cable – 2 m, 5 m or 10 m, as selected – Stäubli MC4
- Mount: Flat mount for 1 panel
- Also in the box: Accessories box + printed guide
- ENA register: SOLAW/21640
Rooftop vs plug-in
| Plug-in (Solarfy Duo) | Rooftop solar | Do nothing | |
|---|---|---|---|
| Upfront cost | £509 | ~£7,400* | £0 |
| Roof work or scaffolding | No | Yes | – |
| Installer needed | Not for most homes | Yes | – |
| Set-up time | An afternoon | Weeks | – |
| Take it with you when you move | Yes | No | – |
| Your electricity bill | Lower from day one | Lower | Keeps rising |
*Typical cost of a rooftop solar system, Which? 2026.
Your questions, answered
Is plug-in solar legal in the UK?
Yes, in England, Scotland and Wales since 27 August 2026, for kits listed as compliant on the ENA register. The Solarfy Duo 910 is listed as SOLAW/21608. One kit per household, up to 800 W. Not yet permitted in Northern Ireland.
Do I need an electrician?
Not for most homes. You plug it into a suitable fixed wall socket. You’ll need an electrician if you need a new outdoor socket, or if your wiring is old and has no RCD protection.
Can I use an extension lead or adaptor?
No. The kit must plug directly into a fixed wall socket. That’s why we offer 5 m and 10 m solar DC cables instead.
How do I register it?
On myplugin.solar (free, run by the Energy Networks Association): confirm your email, enter your postcode, choose your kit, submit. It takes a few minutes; do it when you plug it in (within 28 days). Our guide walks you through it.
How much will I really save?
Around £100–£120 a year in a sunny, unshaded spot at today’s price cap, if you use 60–70% of the power at home (about 650 kWh a year). The government’s estimate for plug-in solar is £70–£110 a year. Shade, direction and when you use electricity make the difference.
What happens to power I don’t use?
It flows to the grid. Normally you’re not paid for it unless you have an eligible export tariff – so the Duo is sized to cover your daytime base load.
Does it work in winter or when it’s cloudy?
It still makes power in daylight, but much less. Most of the yearly output comes from March to September – setting up now means you’re ready for spring.
How big and heavy is it? Will it blow away?
Each panel is full-size: 1,762 × 1,134 × 30 mm and 22 kg (the Duo has two). That’s why two people deliver it – free. Set it up on the included flat mount and follow the mounting instructions in the manual to secure it against wind.
I rent – can I use it?
Yes, with your landlord’s or freeholder’s permission – we include a letter template. It’s not allowed on timber balconies or combustible cladding. When you move, unplug it and take it with you.
Should I tell my home insurer?
We recommend letting your insurer know about any new electrical equipment. The kit is ENA-registered and you register it with your network operator.
Can I add a battery or more panels?
Yes – the kit is battery-ready. Technically it works with common plug-in storage systems such as Zendure, Marstek, EcoFlow and Anker, so you can keep your kit and simply add storage later. UK rules don’t allow plug-in batteries yet – the government is reviewing them. Join our waitlist and we’ll tell you as soon as you can add one. The rules allow one plug-in kit per household. If you already have rooftop solar, check with your network operator first.
Returns & warranty
14-day returns, no reason needed. Hoymiles micro-inverter: 12-year manufacturer warranty. Solar panels: 30-year warranty.
Delivery
Free 2-person delivery across Great Britain (not Northern Ireland), dispatched from Birmingham. Delivery takes 5–8 working days.
Our story
Germany did plug-in solar first. We were there.
More than a million German homes use plug-in solar. The team behind Solarfy has shipped 10,000+ orders to German households and installers since 2022 – our German store is rated 4.6★ by 100+ customers on Trustpilot. We’ve built Solarfy kits specifically for UK rules, and we ship from our warehouse in Birmingham.
Your home. Your solar power.
Complete kit, delivered by two people, registered in minutes.
*Savings estimate: south-facing, unshaded, approx. 325 kWh/year, 60–70% used at home, electricity at 26.32p/kWh (Ofgem price cap, 1 Oct–31 Dec 2026). Results depend on location, orientation, shading and usage.