greenhomesums
Solar calculators for UK homes
Work out whether solar stacks up on your roof, how fast it pays back, and what batteries and export tariffs do to the numbers.
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Solar Panel Savings Calculator UK
Estimate your solar panel payback, 25-year savings and export income by UK postcode. Uses JRC PVGIS satellite data.
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Solar Payback by Postcode UK
UK regional solar calculator — see solar panel payback, 25-year savings and annual generation for your postcode. Powered by JRC PVGIS satellite data.
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Solar + Battery + EV Combined Savings Calculator UK
Model the combined savings of solar panels, a home battery and a home-charged EV on a UK time-of-use tariff. Sees where the money actually comes from — self-consumption, SEG export, battery arbitrage, EV off-peak — and gives a 15-year net-benefit figure on the whole stack.