All battery storage FAQs

Home Battery Storage questions, answered.

Everything you need to know about home battery storage in the UK, written by our installation team. Search for a specific question below.

Smart ChargingTax Benefits

Can I have a home battery without solar panels?

Yes. A battery works fine on its own. It charges from the grid overnight on a cheap smart tariff, often from around 7p per kWh, then runs yo…

Tax Benefits

Do Home Batteries Qualify for 0% VAT in the UK?

Yes, when supplied and fitted by an installer. Home battery installations qualify for 0% VAT in England, Scotland and Wales until 31 March 2…

Warranty & Lifespan

How long does a home battery last?

A home battery in the UK comes with a 10 year warranty as standard. Modern lithium iron phosphate batteries are built for around 6,000 charg…

Tax Benefits

Is a home battery worth it in the UK?

For most homes with solar panels or a cheap overnight tariff, a home battery is worth it. It stores cheap electricity and runs your house on…

Capacity Planning

What size home battery do I need?

Most UK homes need a battery between 5kWh and 13kWh. The right size matches the electricity you use in the evening and overnight, which is w…

Electrical Upgrades

Can I Add a Battery to My Existing Solar Panels?

Yes. Most existing UK solar systems can take a battery, including older ones fitted years ago. In most cases we add a separate battery inver…

Planning & Permitting

Do I Need Planning Permission for a Home Battery?

For most homes in England, no. A domestic battery is generally treated as permitted development, so you do not need a separate planning appl…

Capacity Planning

How Long Will a 10kWh Battery Power My House?

A full 10kWh battery gives you around 9kWh of usable power once inverter losses are counted. For a typical UK home using 8 to 10kWh a day, t…

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