Design your solar estimate
£
Adjust the assumptions — roof, rates & system size (optional)

These are pre-filled with typical UK figures. Leave them for a standard estimate, or tweak them to match your own bill and quote.

p/kWh
p/kWh
4.0 kWp
4%

Add your postcode or pick a region above to calculate.

Compare your options

The same system, three ways to run it — from panels alone to battery plus a smart tariff.

Your solar in detail

Based on the system above — how it performs through the year and builds up over its lifetime.

Estimated monthly generation

Your savings build up over 25 years

Panels only Solar + battery + Smart tariff

Year-by-year savings

Indicative estimate only — not a quotation. Actual savings vary by property, usage, equipment and tariff. Always get a professional quote before investing.