Household retrofit guidance for private properties - Battery storage

Domestic batteries are typically used alongside solar PV panels. If you can store electricity throughout the day when the sun is shining, you can then use this electricity at night when the solar PV panels are not generating any electricity.

A domestic battery can also be used to store electricity bought from the grid at cheaper times of the day. This is dependent on your tariff. By doing this, you can reduce the amount of electricity you require at peak times and therefore lower your energy bills.

Domestic batteries are typically installed in garages or utility rooms, however, speak to your installer to find the best location for your home. As the purchase cost of domestic batteries is still very high, it is worth weighing up whether this is the best option for the budget you have available after you have reduced the energy demand from your home.

Ask an installer to explain the lifespan and cost savings from a domestic battery based on energy consumption in your home.

The Centre for Sustainable Energy provides a useful battery storage guide to help you store the excess electricity you generate at home. 

The Energy Saving Trust has advice and tips on how to store energy in your home.

Cost: £10,000 to more than 10,000 pounds

Disruption: Low