I am considering this to ensure a reliable supply, as I fear Red Ed will give us black-outs very soon.
Below are extracts from EON energy.
Why do I need a solar battery?
Although solar panels work without solar batteries, you can only use the power generated immediately if you don’t have a battery. So you can’t keep the renewable power you’ve generated for later use – instead it’s exported back to the grid.
A solar battery fitted in your home can increase the amount of clean energy your family uses and can help you to save money – you can install one retrospectively or at the same time as your solar panels. You won’t need to import as much electricity from the grid and during peak times, you’ll have your own renewable source.
Can I add a battery to my existing solar panel system?
Yes, it’s easy to retrofit a solar battery to an existing solar panel system. Depending on the specifications of your existing system and how much storage capacity you require, we offer four sizes of batteries. And if you’re not sure which size of battery is best for you and your home we can discuss this with you at your consultation with one of our solar experts. And you don’t need to have bought your solar system from E.ON to get one of our batteries.
How much does a solar battery cost?
Adding a battery for solar panels used to be very expensive but as solar batteries have become more common, costs have fallen. Costs vary depending on the storage capacity of the battery you need – we can retrofit a solar battery to a storage system from £3,635 (this is an EON quote).
Where are solar batteries fitted?
Technical advances mean solar batteries are now lighter and smaller, creating more options for home battery storage. In fact, on average, a battery is similar in size to carry-on hand luggage which you might take on holiday.
They can be stored in a loft, garage, utility room, under the stairs or even outside – as long as it won’t be too exposed.