Battery storage & grid backup
Store your energy.
Power your peace of mind.
Make more of your solar power with battery storage, and plan backup power around what matters to your home or business.


Use more of your solar
Keep surplus generation for later instead of using it only as it is produced.
Reduce grid reliance
Use stored energy to cover more of your home or business needs.
Energy when you need it
Make daytime solar generation available for evenings and other busy periods.
Backup for the essentials
With a compatible setup, support selected circuits during a power cut.
Make your energy work harder
Battery storage built around your needs
Your energy use doesn’t stop when the sun goes down. A battery lets you keep surplus solar electricity and use it later, helping you make better use of the power your panels produce.
Devon Solar helps homeowners, businesses and farms across Devon, Cornwall and Somerset choose a system around their property, energy use and priorities. Whether you’re planning a new solar installation or exploring an upgrade, we’ll explain the options clearly.
Our battery & backup services
A complete service, from start to finish
The right battery size
We look at your consumption and solar generation to recommend suitable storage capacity.
New systems & upgrades
Explore storage with a new solar installation or assess options for your existing setup.
Backup circuit planning
Decide which essential loads matter most and what your proposed system can support.
Installation & support
Our in-house team manages installation and helps you understand your system.
Keep the essentials in mind
Power for what
matters most
Lighting, refrigeration, Wi-Fi and other selected loads can be considered when planning backup for your home or business.
We’ll discuss your priorities and explain the practical limits of the proposed system, so you know which circuits are supported and how available battery charge affects backup time.
Plan your battery & backupYour questions answered
Battery storage & grid backup FAQs
Will a battery keep everything running during a power cut?
Not automatically. Backup operation needs a compatible battery and inverter arrangement, the appropriate switching equipment and a suitable circuit design. Some systems support selected circuits; wider coverage depends on the design and available output.
How long will backup power last?
It depends on the battery’s usable capacity, its charge when the outage starts, and the amount of power your connected loads use. We’ll discuss your priorities and the expected limitations of the proposed setup.
Can I add a battery to existing solar panels?
Often this can be explored, but the right approach depends on your existing inverter, electrical installation and the battery you choose. We’ll assess compatibility before recommending an upgrade.
Do I need solar panels to use a battery?
Some battery systems can charge from the grid as well as solar. Whether that arrangement suits you depends on the system, your electricity tariff and how you use energy.
Is battery storage the same as grid backup?
Battery storage keeps energy for later use. Grid backup allows a suitably designed system to supply supported circuits when the grid is unavailable. Tell us if backup is a priority so it can be considered from the start.
How do I know which system to choose?
Start with your energy use and the jobs you want the system to do. Our team can help you compare storage capacity, power output, compatibility and backup options without assuming you need the largest battery.
Ready to take control
of your energy?
Tell us about your property and energy needs. Get a free, no-obligation quote for your next step.
Get a free quote