Home Battery Options for Flats and Rented Homes in the UK
- A fixed battery in a rented home needs written permission from the landlord or freeholder.
- Siting, insurance and what happens when you move all need answers first.
- A portable power station suits back-up better than daily savings.
- We could not confirm that socket-connected batteries are settled under UK rules.
- A time-of-use tariff can help even without a battery.
If you rent or live in a flat, a fixed home battery usually needs someone else's permission, and plug-in products raise questions we could not settle. Your realistic options are asking for a fixed installation, using a portable power station for back-up, shifting use on a time-of-use tariff, or waiting.
Why flats and rentals are harder
Most home battery advice assumes you own a house with a garage or utility room. Renters and flat owners face different barriers. Your tenancy or lease may stop you altering the property or its wiring. A communal space may belong to someone else. A fixed battery is also awkward to take with you when you move.
Siting matters too. Batteries need suitable ventilation, temperature and access, and should not block escape routes. Those are questions for the installer, the freeholder and the building's insurer, not something to settle on your own.
Option 1: a fixed battery, with permission
If you own a flat or your landlord is willing, a professionally installed battery is the most conventional route. Ask in writing, and include the manufacturer's installation requirements, the installer's certification, who owns and insures the unit, and what happens at the end of a tenancy.
- Get written consent from the landlord or freeholder before any quote is signed.
- Ask the building insurer whether it has conditions for batteries.
- Agree who removes the unit, and who pays, if you move out.
Before you ask
Bring one page to your landlord: the product, the installer, where it goes, who insures it, and who removes it. A clear plan is easier to approve.
Option 2: a portable power station for back-up
A portable power station is built to move with you. It charges from a socket and powers devices directly, which suits keeping a router, lights and a laptop going in a power cut. It is not usually designed to cycle every day to cut your bill, although that depends on the product. Browse our power stations pages and compare specifications with Compare For Yourself. Do not connect one to your home wiring unless the manufacturer and a qualified person say it is safe.
Option 3: plug-in batteries and the open questions
Plug-in batteries are marketed at flats and renters, but we could not confirm how rules on socket-connected batteries apply in the UK, so we would not rely on one yet. Our plug-in batteries pages show what is available and what we know.
On 22 June, Octopus Energy announced a plug-in unit called the Nook Cube for renters and apartment dwellers, due in 2027. Its announcement gives a 2 kWh size but no price, so there is nothing to compare yet.
Option 4: change the tariff and the habits
Even without a battery, a smart meter and a time-of-use tariff let you move flexible loads such as laundry and dishwashing to cheaper hours. The saving depends on the tariff's price gap and what you can shift, so check the actual rates. Our explainer on how a home battery saves money shows why the price gap matters.
Common questions
Do I need my landlord's permission?
Almost certainly for anything fixed to the wall or wired into the property. Check your tenancy or lease and ask in writing.
Can I take a home battery with me when I move?
A fixed battery can in principle be disconnected and reinstalled, but that needs a professional and may affect the warranty. Ask the manufacturer before you buy.
Is a power station the same as a home battery?
No. Both store energy, but a power station is portable and built for flexible use, while a home battery is installed to run the house automatically. Compare the specifications rather than the names.
Will a battery help if I have no solar?
It can, if you have a time-of-use tariff with a wide enough price gap, but savings depend on the tariff. Try the home battery calculator with your own figures.
Related guides
Want to know which battery size fits your home?
Use our free calculator to get a size, savings and payback estimate.