Estimate panel capacity, battery storage, and installed cost based on your appliance loads.
Appliances — adjust watts & hours/day
HVAC at 4 hrs/day is a mild-climate annual average for Ponte de Lima — adjust seasonally. Commercial freezer defaulted to 600 W; check nameplate on your unit.
Solar resource — Ponte de Lima
Ponte de Lima (lat 41.8°N) averages ~4.2–4.8 peak sun hours/day annually. Summer peaks ~6.5 hrs, winter ~2.5 hrs. 4.5 is a conservative annual average.
System parameters
Set EV solar % to 0 to charge the car entirely on cheap overnight grid tariff — this removes the EV from the solar sizing calculation and significantly reduces panel and battery requirements.