Tesla Powerwall 3 home battery now on sale in Britain - what is it and can it really save you big on energy bills?
![Tesla Powerwall 3 home battery now on sale in Britain - what is it and can it really save you big on energy bills?](https://i.dailymail.co.uk/1s/2024/06/19/16/86322999-0-image-m-32_1718810523818.jpg)
The Powerwall can store electricity for use at a later point, with households able to use the device to save money on their energy bills.