Solar tools

Eight calculators for solar, storage, charging and heating. Every figure is shown with its source and its date.

• Solar savings and payback calculatorSystem size, production, savings and payback for your market.
• Solar cost calculatorCost range with a component breakdown, plus a check whether an offer is fair.
• Solar yield calculatorAnnual and monthly production for your location, orientation and tilt.
• Self-consumption and battery size calculatorSelf-consumption with and without a battery, plus the size that pays back.
• Roof orientation and tilt calculatorHow your roof compares with the optimum for your location.
• Feed-in versus self-consumption calculatorHow the balance between using and selling your electricity moves the result.
• Wallbox and EV charging cost calculatorCharging cost from the grid and from your own roof, per year and per 100 km.
• Heat pump savings calculatorElectricity demand, heating cost and how much solar can cover.