Solar Savings Calculator UK

Estimate how much you could save on your energy bills with solar panels. Based on your property and energy usage, this tool gives you a clear idea of potential annual savings — a practical starting point before you speak to installers.

When you’re ready, get free, no-obligation quotes from MCS-certified installers covering your area.

Solar savings estimator

Get a rough idea of system size, cost and savings for a typical UK home. Takes under a minute — no personal details required.



Used for regional context only — not stored or shared from this calculator.


Typical UK household: £80–£180/month. Check a recent bill.


Helps check whether your roof is likely big enough for the system your bill suggests.


Which way does most of the roof face?



Your rough estimate

Suggested system
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Install cost range
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Annual savings
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Payback (approx.)
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Compare free installer quotes

Estimate only. Figures are indicative ballpark ranges based on typical 2025/2026 UK residential solar pricing (0% VAT on qualifying domestic solar installs), average generation and self-consumption assumptions. Actual quotes depend on roof space, shading, property type, inverter/battery choice, grid connection and installer. Smart Export Guarantee (SEG) rates vary by supplier. This is not financial advice — always compare MCS-certified installer quotes.



This calculator provides an estimate only. Actual savings depend on your roof, system design, usage, tariffs and installer quote. Always compare detailed quotes before deciding.

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