Drag the slider to match your monthly electricity bill and see your numbers update straight away. We’ll estimate the right system size for your home, your annual saving, how long it takes to pay for itself, and your saving over 25 years.
6,000+
Installations completed
£22m+
Grant funding secured
4.6 / 5
Rated on Trustpilot
MCS & NAPIT
Certified installers
Most online solar calculators use one flat sunshine figure for the whole of the UK. Ours doesn't. Every estimate above is built from your actual property and verified generation data for your specific part of Scotland or the North of England.
Generation figures come from the Microgeneration Certification Scheme's own regional data, not a single UK-wide average.
Your property type, roof size and monthly bill all feed into the numbers above, so this isn't a one-size-fits-all guess.
Our figures are reviewed against EPVS's own confirmed benchmarks, the body that underwrites the savings claims we're allowed to make.
Use the calculator above. No sign-up, no call required.
One of our friendly advisers will be in touch to confirm the details.
We'll confirm your roof, shading and the right system size for your home.
Our MCS-certified in-house installers get you up and generating.
Proud to be named Cosy Installer of the Year 2026 with Octopus Energy.