Uswitch

Got solar panels but still paying for grid electricity once the sun goes down? ☀️🔋 A solar battery stores the extra power your panels make during the day, so you can use it later – in the evening, overnight or on a cloudy day.

It's a big investment upfront, but there's no VAT on solar batteries until March 2027, and on average they boost how much of your own solar power you actually use from around 30% to over 70%.

We've broken down the costs, how long batteries last, and whether one's worth it for your home:

Solar battery storage - how solar batteries work and if they're worth getting - Uswitch A complete guide to solar battery storage in the UK - costs, benefits, savings, and how solar power and battery storage systems work.

1 July is only 5 days away. Millions will pay more on their energy bill. Switch to a fixed deal now and you don't have to be one of them. Up to £285* in savings. Switch now: https://www.uswitch.com/gas-electricity/

*Savings correct as of 25 June 2026. Rates may vary upon region.