Solar batteries are designed to work with solar panel systems. It's a device that stores the electricity you generate (but don't use immediately) from your solar panels, allowing you to then use that electricity later in the day.
A solar battery allows you to store electricity produced by your solar panels and use it later or, in some cases, sell it back to the grid to make a few quid – but they're not cheap. Read on to see if it's worth getting a solar storage battery for your home... This is the first incarnation of this guide.
If you have solar PV panels, or are planning to install them, then using home batteries to store electricity you’ve generated will help you to maximise the amount of renewable energy you use. Storing your solar energy will reduce how much electricity you use from the grid, and cut your energy bills.
1. Best low-cost battery: Sunsynk L5.1 2. Best usable capacity: SunPower SunVault solar battery 3. Best for efficiency: Tesla Powerwall 2 solar battery 4. Best for warranty: Enphase IQ solar battery 5. Best for a wide range of options: LG Chem Resu solar battery How did we choose the best home battery storage in the UK? 1.
By clicking a retailer link you consent to third-party cookies that track your onward journey. If you make a purchase, Which? will receive an affiliate commission, which supports our mission to be the UK's consumer champion. Battery storage for solar panels helps make the most of the electricity you generate.
Warranty is a good measure of the quality of some of the best of the solar batteries. One of the longest warranties for a solar battery in the industry is 25 years by SunPower. However, the average warranty period you’ll find for most solar batteries is 10 years. 1.