Plug-in solar in Leeds: what the 2026 rules allow

What changed on 27 August 2026

Until the summer of 2026, getting electricity from solar panels into a home's wiring meant a fixed installation, connected at the consumer unit by someone qualified to do it. SI 2026/848 opened a second route for small kits: from 27 August 2026, a kit whose output does not exceed 800 W may be connected through a standard plug and socket in Great Britain (legislation.gov.uk). The Energy Saving Trust has published guidance for households thinking about one (Energy Saving Trust), and it is worth reading before choosing a product.

A kit is usually one or two panels, a small inverter and a lead. The panels go somewhere with daylight, the inverter turns their output into mains electricity, and the plug feeds it into the house circuit, where it supplies whatever happens to be running. There is no roof work, no scaffold and no change to the consumer unit, which is the whole appeal for a household that cannot, or may not, alter the building. That describes a lot of Leeds: at the 2021 Census 42.2% of the city's households rented their home, 21.8% from a private landlord and 20.4% in social housing (ONS Census 2021).

The new route sits alongside fixed rooftop systems rather than replacing them. A roof system still goes through an installer, MCS certification and the grid process set out in the grid connection guide, and it is still the way to make a serious dent in a household's electricity use.

Where a kit can and cannot go

Being legal to plug in is one question; planning is another. The permitted development changes that took effect on that date, under SI 2026/896, cover plug-in panels on houses in England, so in most cases no application is needed (SI 2026/896). The exceptions are specific. A plug-in panel on a timber wall, on a balcony, on an enclosure or on a timber-clad surface is not permitted development (Planning Portal). If you are unsure whether a fence or garden wall counts as an enclosure, ask the council's planning team before fixing anything to it. On a listed building, fixing anything to the fabric can need listed building consent whatever its size, so the council comes first there too.

Those exceptions fall unevenly across Leeds homes. Blocks of flats housed 17.5% of Leeds households at the 2021 Census (ONS Census 2021), and for many of them a balcony is the only outdoor space that gets daylight, so the most obvious spot is the one the rules exclude. A terraced house with a sunny rear wall or yard has more to work with. Back-to-backs, sharing their rear wall with the house behind, offer only the front elevation and the single roof slope above it; the back-to-back guide looks at that layout. Listed buildings and conservation areas bring their own limits, and Leeds has 80 conservation areas (Leeds City Council); the planning guide covers both.

What a kit makes, set against a roof

PVGIS has no figure for a plug-in kit as such, so the comparison below is our arithmetic. It treats a kit as 0.8 kW of panels, matching its maximum output, and applies the PVGIS yearly output per kW for central Leeds (PVGIS). The PVGIS figures on this site are for tilted and flat panels, not upright ones, so a kit hung flat against a wall or a railing is not shown; it would make less than the tilted rows. Lying flat, a kit gives up about 18% against the same panels tilted towards the south.

Set beside the 2,500 kWh Ofgem treats as a typical household's yearly use (Ofgem), even the best-placed kit covers only about 30%. A 3 kW roof system on the same aspect makes around 4 times as much. Location within Leeds hardly matters by comparison: the same south-facing kit would make about 747 kWh a year in Otley and 778 kWh in Wetherby on the PVGIS figures.

The months matter more. In May a south-facing kit in central Leeds would make about 94 kWh, roughly 3.0 kWh a day; in December about 26 kWh for the whole month, roughly 0.8 kWh a day, and from November to February about 126 kWh in total (our arithmetic from PVGIS). Spread evenly, Ofgem's typical yearly use comes to about 208 kWh a month, so even in May a kit covers less than half of an average month's electricity. For an owner with a usable roof, the two are not really alternatives; the cost of solar in Leeds covers what a roof system involves, and the roof picker shows what each slope would give.

Leases, tenancies and fixing a kit

Planning is not the only permission that matters. A kit fixed to the outside of a building is an alteration to it, and whoever owns the building has a say. For a private tenant, that means the landlord; for a council or housing association tenant, the housing service and its rules on fixtures; for a leaseholder, the freeholder and the terms of the lease. Leases can forbid fixing anything to the outside walls or balconies, and tenancies can forbid alterations without written consent, so read the documents before buying rather than after.

A kit standing on its own frame in a garden or yard avoids drilling into the building, but the tenancy or lease may still cover what can be put in shared or outdoor spaces. One advantage a kit has over roof panels is that it can move with you: it belongs to the household, not the building, which suits anyone who expects to change address in the next few years. The guides to renting and to shared houses and flats cover how to ask.

Getting the most from a small kit

A kit's output arrives through the middle of the day and mostly in the summer half of the year, so its value depends on what the house is drawing at those times. The steady loads that run all day, such as a fridge-freezer, a router and devices left on standby, will use some of it whether anyone is home or not. A home office, or a washing machine set to run around midday, uses more. Anything surplus to the house's needs at that instant passes out through the meter onto the grid.

Position matters more than anything else you control. A spot facing south, south-east or south-west with no shade from neighbouring houses or trees through the middle of the day will do far better than a shaded or north-facing one, and keeping the panels clear of leaves and dirt helps at the margin. Check the kit's own monitoring, if it has any, against the table above for a sense of whether it is performing.

Before you buy

• Check the spot against the planning exceptions above: no timber walls, balconies, enclosures or timber-clad surfaces under permitted development.
• Check the lease or tenancy, and ask the owner of the building in writing if fixing is involved.
• Look at the daylight the spot gets across the day and the year, not just on one sunny afternoon.
• Plan where the lead will run. A cable passed through a window that then cannot close, or trailing across a path, creates problems of its own; the kit's instructions should show a safe route to the socket.
• Read the Energy Saving Trust guidance on plug-in panels before choosing a product, and follow the maker's instructions on sockets, leads and fixing.
• Owners with a workable roof should set the kit's output against a roof system's before choosing.

If you do go ahead, keep the receipt, the product instructions and any compliance information with the home's other documents, so a landlord, a buyer or an insurer can see exactly what was fitted and when. Answers to the questions people ask most about solar in Leeds are collected on the FAQs page.