Calculate Your Solar Savings
Using Met Office sunshine data, MCS installation standards, and current Ofgem electricity rates
System Size4.00 kW
Battery Size5 kWh
Your Electricity Cost£0.30
Installation Cost£1500
First-year savings
£990Rounded to nearest £10
Payback period
8.6 yearsYears to break even
25-year savings
£35,150Inflation-adjusted
CO₂ saved per year
874 kgvs. grid electricity
Payback gaugeTarget < 10 years
0 yrs10 yrs15 yrs25 yrs
Current bill (monthly)
£93£1,110 / year
With solar (monthly)
£10£122 / year