Key takeaways
- • Plug-in solar in Great Britain is limited to a maximum output of 800W.
- • Savings depend heavily on how much electricity you use during daylight hours.
- • Permission may be required if you rent, lease or live in a managed building.
Often yes, but you need permission and a removable installation. Plug-in solar is one of the few forms of solar a tenant can realistically use, because nothing has to be bolted through the roof.
Start with your tenancy agreement
Most agreements prohibit alterations without written consent. Fixing brackets to a balcony rail, wall or fence counts as an alteration. Ask in writing, describe exactly what you plan to fit, and offer to remove it and make good at the end of the tenancy.
Make the ask easy to say yes to
- Send the product page, weight and mounting method
- Confirm no drilling, or specify exactly what will be drilled
- Explain the manufacturer-approved connection method and whether any electrical work is required; use an appropriately qualified electrician if a socket or circuit needs to be installed, altered or assessed
- Confirm you will remove the system when you leave
Clamp-on and freestanding options
Railing clamps and ballasted garden frames avoid drilling entirely and are far easier to get approved. Freestanding or non-fixed equipment may reduce concerns about alterations, but check the tenancy agreement and building rules before assuming permission is unnecessary.
Who owns the system
You do, if you paid for it. Put that in writing with the landlord so there is no dispute later, and keep the receipt and installation certificate.
Landlord and freeholder permission in detail
If you rent, or own a leasehold flat, you almost certainly need consent before mounting anything on a balcony, wall or communal structure.
Leaseholders
The balcony, external walls and railings are usually retained by the freeholder even when the flat is yours. Your lease will contain clauses on alterations and on attaching items to the exterior. Written consent from the freeholder or managing agent is the safe route, and some will ask for a small fee or a licence to alter.
What to include in a written request
- Photographs of the intended location
- Product weight, dimensions and mounting method
- Details of the manufacturer-approved electrical connection and any electrical work required
- Wind loading and fixing details for anything at height
- Undertaking to remove and make good
If consent is refused
Freestanding or non-fixed options may involve fewer alterations, but confirm the position under your tenancy, lease or building rules before proceeding.
Before asking, it can help to shortlist a clamp-on or freestanding system using our guide to the best plug-in solar kits, and estimate the benefit with the savings calculator.
Frequently asked questions
Sources
Fact-check status: reviewed. Read our editorial policy. General information only — not electrical, legal or financial advice.