Without storage, most of what your panels make goes back to the grid. Tap your house size to see the difference.

Key Points:

  • Without a battery, a typical home uses only 15% to 31% of the electricity its panels generate.1
  • Add storage and that rises to 52% to 71%, so you buy less from your supplier.1
  • Panels and batteries are both zero-rated for VAT until 31 March 2027.2
  • Export whatever you still do not use.4

Most people assume the saving from solar comes from generating electricity. It comes from using it, the moment your panels make it.

Panels produce most on a bright afternoon, when plenty of households are out. Anything you are not using right then leaves the property. A battery holds it back for the evening instead.

You do not need a big house or a south-facing roof for this. Panels run on daylight, not hours of direct sunshine, and the same logic holds on east and west-facing roofs. Panel costs have tumbled more than 30% in the past few years.3

See what a battery changes for your home

Tap your house size to see how much of your electricity you would keep, in seconds.

  • 1-2 bedrooms
  • 6 panels required
Annual savings without VS with a Battery
£300
£380
  • 3 bedrooms
  • 10 panels required
Annual savings without VS with a Battery
£490
£650
  • 4+ bedrooms
  • 14 panels required
Annual savings without VS with a Battery
£720
£970

Savings and costs depend on your property size and location. Select your region below to get started and to get a free personalised quote.

Select your postcode to explore your solar and battery options
(It only takes a minute)

Why Storage Changed the Maths

Government projections put solar among the cheapest forms of electricity in the UK.7 What has changed more recently is what happens to that electricity once your panels have made it.

Under the Smart Export Guarantee your supplier pays you for what you send back to the grid.4 That rate sits below the rate you pay to buy electricity in.5,6 Storing it is what closes the gap.

Massive Benefits Of Going Solar in 2026

  1. 0% VAT on both – Solar panels and home battery storage are both zero-rated for VAT until 31 March 2027.2
  2. Lower up-front costs – New technology and more competition have brought panel costs down more than 30% in the past few years.3
  3. Use more of what you generate – Storage holds daytime generation back for the evening, when household demand is highest.1
  4. Export the rest – Electricity you still do not use can be sold back to the grid under the Smart Export Guarantee, available in Great Britain.4
  5. Increase EPC rating – Solar panels can significantly improve your property’s EPC rating.
Select your region below to explore your solar and battery options
(It only takes a minute)

How can I start saving with solar and a battery?

  1. Click your location on the map below
  2. Answer a few simple questions
  3. Receive your free quote!