Home battery storage systems in Sussex.
A home battery storage system lets you store the solar energy your panels generate and use it when you need it most, rather than sending it back to the grid at a fraction of the price. Bright Spark Energy supplies and installs leading battery systems across Sussex, including Tesla Powerwall, Sigenergy, and SolarEdge battery solutions.
How home battery storage works.
Solar panels generate electricity throughout the day, often more than a household can use in real time. Without a battery, that surplus goes back to the grid under the Smart Export Guarantee at a relatively low rate. With a home battery, that energy is stored and available to power your home in the evening, during bad weather, or overnight when your panels are not generating.
Modern battery systems are smart. They can be programmed to charge from the grid during cheap off-peak tariff periods, such as overnight on an Agile or Economy 7 tariff, and discharge during expensive peak times. The result is significantly lower electricity bills and greater energy independence.
Battery systems we install.
Tesla Powerwall 3
One of the most popular home battery systems in the UK. The Powerwall 3 combines a solar inverter and battery into a single unit, with whole-home backup capability and seamless app control. Bright Spark is an approved Tesla Powerwall installer.
Sigenergy
A flexible, modular battery system ideal for homeowners who want to start with a smaller capacity and expand over time. Suitable for both new solar installations and retrofitting to existing systems.
SolarEdge battery
Designed to work seamlessly with SolarEdge solar inverters, this DC-coupled battery solution offers high efficiency and straightforward smart energy management through the SolarEdge app.
Benefits of battery storage for Sussex homeowners.
Use more of your solar
Use more of the solar energy you generate rather than exporting it cheaply.
Less grid reliance
Reduce your reliance on grid electricity and protect yourself from rising energy prices.
Whole-home backup
Power your home during a grid outage with whole-home backup systems.
Cheap overnight charging
Charge your battery cheaply overnight on time-of-use tariffs.
Real-time tracking
Track your energy usage and savings in real time through a smart app.
Lower carbon footprint
Lower your household carbon footprint by maximising clean energy use.
Retrofitting a battery to an existing solar system.
You do not need to install solar panels and a battery at the same time. Bright Spark regularly retrofits battery storage systems to existing solar PV installations across Sussex.
Our team will assess your current inverter and wiring, recommend the most compatible battery system, and carry out the installation with minimal disruption.
Frequently asked questions.
How much does a home battery storage system cost?
Home battery systems in the UK typically range from around £3,000 to £8,000 depending on capacity and brand. Bright Spark will provide a transparent, itemised quote after assessing your home and energy usage. Finance options are available.
Can I install a battery without solar panels?
Yes. A battery-only installation can still save you money by charging from the grid at cheap overnight rates and discharging during expensive peak times. However, the savings are significantly greater when combined with solar panels.
How long does a battery installation take?
Most battery installations are completed within a single day. Combined solar and battery installations typically take one to two days.
Will a battery provide power during a blackout?
This depends on the system. Tesla Powerwall 3 and certain other models offer whole-home backup functionality, which keeps your home powered during a grid outage. We will help you choose the right system if backup power is a priority.
Get your free battery quote in Sussex.
Tell us a little about your property, your solar system if you have one, and how you use electricity. We’ll arrange a no-pressure site visit and put together a clear, itemised proposal.
Where we work.
We’re based in Littlehampton and our installers cover the whole of East and West Sussex, from the coast to the Weald, alongside Hampshire, Surrey and the wider South East. Further afield? We travel — and you get exactly the same service.
- Brighton & Hove
- Chichester
- Worthing
- Littlehampton
- Bognor Regis
- Horsham
- Crawley
- Lewes
- Eastbourne
- Hastings
- Haywards Heath
- Midhurst
Book your free consultation.
Tell us a little about your property and what you’re hoping to achieve. We’ll arrange a no-pressure site visit and put together a clear, itemised proposal.