What is energy storage and how does it work?

Home energy storage systems store generated electricity or heat, so that you can use the energy when you need it.

Electricity can be stored in electrical batteries, or it can be converted into heat and stored in a heat battery. Heat can also be stored in heat batteries or in thermal storage, such as a hot water cylinder.

Energy storage can be useful for people who generate their own renewable energy, as it allows them to use more of their low carbon energy.