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Solar PV Savings Calculator

Use UK-oriented assumptions to estimate solar generation, self-consumption savings, export income, and a simple payback period.

4 kWp
50%

Estimated results

Annual generation

3,600 kWh

Self-consumption savings

£441.00

Export income

£270.00

Total annual benefit

£711.00

Simple payback

6.8 years

25-year lifetime benefit

£17,775.00

Annual CO₂ saved

745.2 kg

Next step: explore solar options

Use the estimate as a planning baseline before comparing roof suitability, export strategy, and battery storage.

Explore renewable options →