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Solar Calculator

Solar PV Savings Calculator

Calculate your potential annual savings with solar panels based on 15 years of UK sunshine data

Energy Usage Calculator
kWh

Find this on your monthly electricity bill (average UK home: 400 kWh/month)

p/kWh

Find this on your electricity bill (current UK average: 24.5p/kWh)

UK Solar Generation Facts

1,400 Hours
Average annual sunshine hours suitable for solar generation in the UK
40% Self-Use
Typical percentage of solar power used directly in the home
6-8 Years
Typical payback period for residential solar systems

How We Calculate Your Savings

UK Sunshine Data

Based on 15 years of Met Office data, we use 1,400 annual sunshine hours for realistic generation estimates.

System Efficiency

We factor in 85% system efficiency including inverter losses, shading, and maintenance requirements.

Market Rates

Current electricity prices and Smart Export Guarantee rates are used for accurate savings projections.