Plug-in solar for gardens

Gardens can be one of the best places to put a small plug-in solar system. Unlike a roof or a balcony, where the position and angle are fixed by the building, a garden lets you choose the sunniest spot, set a good tilt and move the panel to dodge shade — which is exactly what helps a small system make the most of UK conditions.

Before going further, the essential caveat: in the UK, plug-in solar cannot currently be legally sold, supplied or used. A Government consultation that could change this is open until 30 June 2026. This guide is here so you can plan sensibly, not so you can buy a system to use today. The detail is on the UK legal status page.

Why a garden works well

The advantage of a garden is freedom. A roof faces the way the house faces and a balcony faces the way the building faces, but in a garden you can usually find a spot that catches the sun, set the panel to a good angle, and reposition it if a tree or fence casts shade at certain times of day. For a small system aimed at offsetting daytime background use — the fridge, router and devices on standby — that flexibility is worth a lot.

Output still depends on orientation, tilt and shading. South gives the most generation in the UK, with east or west giving less but still useful output, and a sensible tilt collects more than a panel lying flat or standing upright. To see what a particular spot in your garden might produce, use our output calculator, which is built on PVGIS data.

Free-standing and ground placement

A garden setup is typically a free-standing frame rather than anything fixed to a structure. A frame held down by ballast or anchored to the ground needs no drilling into the house, can be angled towards the sun, and can be moved as the seasons change or as shade shifts through the day. Set it on firm, level ground, clear of the spots where shadows fall morning and evening, and make sure it is stable and specified for windy, exposed conditions so it cannot be lifted or toppled.

The framing, anchoring and placement principles here are the same as for a larger, more permanent array, so rather than repeat them we cover the detail in our in-depth guide to ground-mounted solar panels, which goes into frame types, ballast versus ground anchors and getting the angle right.

Routing the cable back to the home

A garden panel only helps if its electricity reaches the house, so the cable run between the two deserves care — it sits outdoors, often across ground people walk on and machines pass over.

• Use outdoor-rated cable. Leads exposed to the weather should be rated for outdoor use and UV exposure, with connectors kept out of standing water.
• Protect the run. Route the cable so it cannot be tripped over, mown, strimmed, dug through or chafed. Where it crosses a path or lawn, give it physical protection rather than leaving it loose.
• Keep it tidy and accessible. Avoid trapping the cable under doors or heavy items, and route it so it can be inspected and lifted out if you reposition the panel.

Leave fixed wiring to a qualified electrician

There is a clear line between setting up a movable panel and altering the home's electrics. Passing a cable through an external wall, adding a dedicated outdoor socket or circuit, or making any connection into the home's fixed wiring is electrical work that should be carried out by a qualified, registered electrician working to the current UK wiring regulations. It is also worth checking whether anything fixed or permanent in the garden raises planning considerations, particularly near a boundary or a listed or protected property.