Sigenergy home battery unit installed by Sunlife Solar UK
Battery storage

Store your solar energy and use it any time

Maximise your independence by storing excess solar energy for use at night or during peak hours. Our advanced battery solutions help protect your home or business from rising energy costs.

How it works

How battery storage works

A simple cycle that turns daytime sunshine into power you can use whenever you need it.

1

Generate

Your solar panels produce clean electricity during the day.

2

Store

Surplus energy charges your battery instead of going to the grid.

3

Use

Draw on stored energy in the evening and overnight.

4

Optimise

Top up from off-peak tariffs and monitor everything in real time.

Fox ESS solar battery and hybrid inverter system
Why add a battery

Get more from every panel, day and night

Solar panels generate the most electricity in the middle of the day - often when you're out. A battery captures that excess energy and stores it for use when the sun goes down, so you rely far less on the grid.

It's the key to getting the most from your solar investment, day and night.

  • Use your own solar energy after dark
  • Cut grid reliance and bills further
  • Protection during power cuts (with a backup-ready system)
  • Charge from cheap off-peak electricity
  • Works with new or existing solar
  • Scalable capacity for your needs
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Sigenergy battery storage installed on a home wall
Retrofit friendly

Add a battery to existing solar

Already have solar panels but no way to store what you generate? In most cases a battery can be added to an existing solar PV system - letting you keep more of your own energy rather than exporting it to the grid.

We'll assess your current setup, check compatibility and recommend the right battery for your usage, all as part of a free consultation.

Compatible

We match a battery to your existing inverter and system wherever possible.

Quality fitted

Reputable, high-quality batteries installed to MCS standards.

Monitored

Track charge, usage and savings in real time from day one.

Talk to our team
Home battery added to an existing solar system
The benefits

More independence, less waste

A battery turns spare daytime solar into round-the-clock value for your home or business.

Lower bills

Use more of your own free solar energy and buy less from the grid, day and night.

Energy security

With a backup-capable system, keep essential circuits running during a power cut.

Less waste

Surplus solar is stored for later instead of being exported for little in return.

FAQ

Battery storage questions answered

Can't find the answer you're looking for? Give us a call.

Yes. In most cases a battery can be retrofitted to an existing solar PV system. We'll assess your current setup and recommend the best compatible solution during a free consultation.
Modern solar batteries are designed to last for many years and typically come with a manufacturer's warranty covering a set number of cycles or years. We only fit reputable, high-quality batteries.
With a backup-capable system, a battery can keep essential circuits running during a power cut. We'll discuss backup options as part of your system design.
The right capacity depends on your energy usage and how much surplus solar you generate. We size every battery to your specific needs so you're neither under- nor over-specified.
A battery increases how much of your own solar energy you use, which can significantly improve your savings and energy independence. We'll model the benefit for your property.

Store your solar and take control of your energy

Find out how a battery could boost your savings and independence. Answer a few quick questions for a free, no-obligation quote.