Add a battery to your solar system

How does solar battery storage work?

Adding a battery to your solar system allows you to store the excess electricity you generate during the day to power your home at night. This means you’ll import less electricity from the grid, saving you money on your energy bills. 

What is a solar battery?

Put simply, a solar battery allows you to store electricity generated from the sun via your solar panels to use at a later date. With a battery, you could use 30% more of the electricity you generate than with solar panels alone1.

Most typical solar systems would require a mid-sized battery of around 4-6 kWh. As a rough guide, a typical home suitable for solar consumes around 12kWh a day on average.

Save energy

A battery allows you to use the energy you generate even after the sun’s gone down.

Cut costs

Save money by importing less electricity from the grid and using the electricity you’ve stored in your battery.

Peace of mind

Your investment is protected with our 10 year warranty on battery storage products.

How much does a solar battery cost?

You can add a solar battery to your existing system from £3,631 which you can spread across 36 months with our 0% finance offer1. We are a credit broker and not a lender.

Contact our solar experts on 0345 366 5981 to see if you could save money by installing your solar panels and battery together.

How big is a solar battery?

On average a battery is slightly bigger than a VCR player (or a games console).

You’ll need somewhere to house the battery and system, they can be installed in most places such as in a garage, utility room or even under the stairs.

Are solar panel batteries really worth it?

If you want to make more use of the electricity that you’ve generated a solar battery could be good for you. Storing your renewable energy means that you can ensure that all of the energy you use is clean energy and you won’t need to rely on the grid. Instead you can use your free electricity at a time that suits you, plus you could even save on your energy billls.

Solar form

Get in touch

Fill out our battery storage contact form or call us today to get more information.

The legal stuff

1 E.ON Energy Installation Services Limited acts as a credit broker and not a lender and work exclusively with Creation Consumer Finance Ltd who acts as the lender. Credit subject to status, terms and conditions apply and can be found at, E.ON reserves the right to amend its finance offering at any time and may withdraw at short notice. E.ON Energy Installation Services Limited is registered in England and Wales under company number 09965944 with its registered office at Westwood Way, Westwood Business Park, Coventry, CV4 8LG. E.ON Energy Installation Services Limited is authorised and regulated by the Financial Conduct Authority in relation to credit broking services under number 750410.  Terms and Conditions apply

Call centre opening hours

Our team will be able to answer your calls between 8am to 6pm Monday to Friday. Don’t forget, calls from mobiles and landlines to 03 numbers are charged at your local rate, unless they’re included in your call package then they’re free.

Frequently asked questions about solar battery storage

Where will the battery be installed?

We will conduct a full survey of your home that will help you to decide on the best location for your battery. It has to be fairly close to your main consumer unit so we have to take that in to account but we normally try to put it in a cupboard, garage, utility room or somewhere similar.

Can I have the battery in a loft?

No, our batteries can’t go in a loft space as they are too heavy. 

How big is the battery?

Our batteries are around 0.4m wide, 0.6m high and 0.2m deep

Can solar panels work without battery storage?

Yes. You don't need to have a battery with your solar panels, however a battery storage system allows you to use more of the energy you generate in your home rather than exporting it back to the grid.

Is there ever any reason a battery couldn’t be fitted with your solar panel package?

A battery isn’t suitable for all customers. For example, you may not have a suitable location in your home. 
Get in touch on 0345 366 5981 to speak to our solar team.

Is there ever any reason a battery couldn’t be retrofitted to existing solar panels?

Yes. Your existing solar panels might not be compatible to the batteries we use or you may not have a suitable location your home.