Savings calculator
See what solar could save you
Move the slider and pick your roof direction for an instant, indicative estimate. It takes ten seconds — and there's no obligation.
Your details
Your indicative estimate
Estimated annual saving
£898
~£22,450 over 25 years
4.5 kWp
~11 panels
4,275
kWh generated / yr
~6.5 yrs
Estimated payback
885 kg
CO₂ saved / yr
Estimates only, based on typical UK assumptions. Your real figures depend on a site survey.
Systems start from £2,500, subject to a site survey. Commercial projects are modelled individually — depending on scale, the investment can pay back in as little as 2–5 years.
How we estimate
We believe in honest numbers. This calculator uses conservative, typical UK assumptions — your real figures come from a site survey of your roof, shading and energy use.
- Electricity price: £0/kWh
- Export rate (SEG): £0/kWh
- Generation (south-facing): ~950 kWh per kWp / year
- Self-use of generation: 50% , or 85% with a battery
Figures are indicative estimates, not a quote or guarantee of savings. Energy prices and generation vary.