How accurate is the solar panel calculator?

Our calculator uses average UK solar irradiance data and current market prices to provide realistic estimates. Actual results may vary based on specific site conditions, equipment choices, and local factors.

What is the average payback period for solar panels in the UK?

The typical payback period for solar panels in the UK is 7-12 years, depending on system size, electricity usage, roof orientation, and current energy prices.

Do I need planning permission for solar panels?

Most roof-mounted solar panel installations in the UK fall under Permitted Development Rights and don't require planning permission. However, restrictions may apply for listed buildings or conservation areas.

What is the Smart Export Guarantee (SEG)?

The Smart Export Guarantee (SEG) is a UK government scheme that requires energy suppliers to pay households for excess solar electricity exported to the grid. Rates typically range from 3-15p per kWh.

UK Solar panel calculator

Calculate your potential savings with solar panels for your UK home

🏠 Your Home Details

Monthly Electricity Bill (£)

Annual Electricity Usage (kWh)

UK average: 3,000-4,000 kWh/year

Available Roof Space (m²)

Each panel needs ~2m²

📍 UK Region

Roof Orientation

Shading Level

☀️ Your Solar Potential

System Overview

System Size: -

Number of Panels: -

Annual Generation: -

System Cost: -

💷 Financial Benefits

Monthly Bill Reduction: -
Annual Savings: -
Payback Period: -
25-Year Savings: -
Net Profit (25 years): -

Environmental Impact

Annual CO₂ Reduction: -

Disclaimer: These calculations are estimates based on average UK data. Actual results may vary based on specific conditions, equipment choices, and installation quality.