Sizing tool
Solar panel calculator
Engineering-style sizing: appliance Wh or bill kWh, city irradiance, climate derate, orientation, tilt and shading — with an explicit formula breakdown.
What do you use at home?
Quantities use typical Wh/day (duty cycle for fridge/AC). Tap a selected device to enter exact watts and hours from the nameplate.
Grid connection
Choose three-phase for villas, workshops and systems above ~5–6 kW.
Suggested plant
Add your appliances (fridge, lamps, AC…) to see a recommendation.