Add a battery to your solar system

What is a solar battery?

Solar battery storage allows you to store electricity generated from the sun via your solar panels to use in the evening or at a later date. Adding a solar battery system is a great way to use renewable energy to increase your independence from the grid.

We offer a solar battery as part of a solar system package or you can opt to add a battery at a later stage.

Our dedicated team of solar panels and battery storage experts will provide information and advice to help you choose the right solar battery for you. 

Adding solar battery storage

Solar panels generate the most energy throughout the day when, traditionally, homes use the least amount of electricity. This means your solar PV system will be producing a lot of surplus energy which would otherwise be wasted. Adding a battery allows you to store this extra electricity to use as and when you want.

You could choose to use the excess energy stored in your battery to power your home in the evening, making you even more independent from the grid or you could charge your electric vehicle, increasing the amount of clean energy used by your family.

Adding a battery could mean that the bulk of the electricity used by your home is low-carbon energy generated from the sun, meaning you’ll import less electricity from the grid, saving you money on your energy bills. 

Interest free finance

Spread the cost of a home battery system with our range of flexible payment options to suit you2.

A trusted provider

We have installed thousands of solar panel systems across Europe and in the UK. You're in safe hands.

Peace of mind

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

How much does a solar battery cost?

If you are having solar panels installed by us you can add a solar battery to your system from only £2,574.

We offer four sizes of batteries depending on what size and type of solar panel system you choose for your home and how much storage capacity you require. 

The size of battery best suited to you and your home can be discussed in more detail at your consultation with one of our solar experts.

You can spread the cost across 36 months with our interest-free finance offer2. We are a credit broker and not a lender. 

Solar batteries and E.ON Home

When you buy solar, battery or other energy products from us you'll get an invitation to use our free and exclusive E.ON Home app.

With E.ON Home you'll be able to see how much solar energy is being stored in your solar battery and how much of that electricity is being used by your home. You'll also be able to track these figures over days, weeks and months.

What are our solar batteries made of?

We use lithium iron phosphate (LFP) battery chemistry, which is one of the safest types of lithium ion battery. LFP batteries can also do more charge/discharge cycles than other solar batteries, without the environmental concerns relating to cobalt-based batteries.

How big are solar batteries?

On average a battery is similar in size to carry-on hand luggage which you'd take on holiday.

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.

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 the loft?

Yes. Unlike the older batteries, which were too heavy, the new ones are much lighter and can be placed in a loft.

Can solar panels work without battery storage?

You don't need to have an battery for your solar PV panels to work. However, energy storage allows you to use more of the eco-friendly energy you generate in your home rather than exporting it back to the grid.

Solar form

Get in touch

Want help today? Give us a call or complete our simple online contact form and one of our solar team will call you back to talk about your options. We’ll help you decide if solar battery storage is right for your home.

The legal stuff

1 Money off battery storage is only available to new solar customers purchasing a combined solar and battery storage package. The following discounts are available - £400 off a 8.2kWh battery, £325 off a 5.2 kWh battery and £250 off a 2.6kWh battery. Offer valid from 14 September 2020 till 11.59pm 2 October 2020 on contracts signed and returned no later than 31 October 2020. The discount will be applied to the total cost of the installation at the time of your quote, only one discounted battery per purchase. Offer not available to E.ON employees and not available in conjunction with any other offer.

2 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.