☀️
Your home's
Your home's
solar savings
Answer a few questions about your home and energy use — we'll calculate a personalised estimate in under 5 minutes.
⚡ Under 5 minutes
🏡 Property-matched
💷 Finance-ready
Example estimate · 3-bed semi · South London
☀️ System size
4 kWp
💷 Annual saving
~£680 / yr
⏱ Break-even
~9 years
📈 25-yr profit
~£8,400
Based on GOV.UK MCS & PV cost data · Estimates only
01
Tell us about your home
Property type, roof direction, EPC rating — we pull your EPC certificate automatically
02
We crunch the numbers
Real PVGIS solar data for your postcode, live energy tariff rates, panel degradation
03
Get your personalised estimate
Savings, payback period and full 25-year profit projection — finance options included
🔆
Real solar data
PVGIS irradiance for your exact postcode, not generic UK averages
🏠
Built for your home
EPC, roof direction, occupancy, EV charging & heat pump all factored in
📊
Full breakdown
Savings, payback & 25-year profit projection with cash or finance options
🔒 No personal data stored · Estimates only
🌍
Region not yet supported
Solar Credit Calculator currently covers properties in the United Kingdom only,
using real solar irradiance data from PVGIS.
Support for regions outside the UK is not currently available but may be coming soon — we're working on it.
Your Solar Estimate
Based on your answers — we'll refine this in the full calculator.
System size
—
recommended for your home
Est. annual saving
—
central estimate
Est. install cost
—
panels
Est. break-even
—
approximate payback
All inputs will be pre-filled in the calculator
Install cost based on GOV.UK Solar PV Cost Data (MCS, 2024/25)