Battery storage has become increasingly popular as prices have fallen and technology has improved. But is it right for everyone?
How battery storage works
A home battery stores excess electricity generated by your solar panels during the day, allowing you to use it in the evening when the sun isn't shining.
The financial case
Without a battery, you might only use 30-40% of the electricity your panels generate. The rest gets exported to the grid at around 15p/kWh. With a battery, you can use 70-80% of your generation, avoiding buying electricity at 28p/kWh.