Tools
Payback Calculators
Back-of-envelope figures to help you evaluate options. These are estimates based on typical UK conditions — we'll give you precise numbers after a site survey.
Back-of-envelope figures to help you evaluate options. These are estimates based on typical UK conditions — we'll give you precise numbers after a site survey.
Size your solar array and battery storage based on roof orientation, shading and energy usage.
Open calculatorDetailed heat loss calculation with U-values, materials, EPC lookup and improvement scenarios.
Open calculatorDetermine buffer vessel size to prevent short cycling — based on your ASHP model and system volume.
Open calculatorCompare financing (APR) against cash purchase — includes inflation, CPI, and lost interest calculations.
Open calculatorHow long does each technology take to generate the energy used to manufacture it?
View comparisonFor a detailed, site-specific calculation, contact our engineering team.
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