Tools & calculators
No round numbers, no marketing-friendly outputs and no postcode form that just sends your details to an installer.
Solar
Roof orientation, shading, tariff and behaviour. Year-by-year breakdown with assumptions visible.
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Battery
Drop in your evening load shape. Returns the smallest battery that captures most of your shiftable energy.
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EV charging
Smart-tariff overnight charging compared against standard rates and against an ICE equivalent.
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Heat pumps
A rough check on the survey number your installer is quoting. For spotting an oversized quote, not a substitute.
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