Battery energy = daily km × kWh per 100 km / 100. Wall energy = battery energy / charging efficiency. Array rating = wall energy / sun hours / retained solar fraction. Panel count rounds up; charging time = wall energy / wall charging power.
Vehicle consumption should exclude charging losses because efficiency applies them separately. This is an energy balance; charging at the chosen power may require the grid or storage even if daily solar energy is sufficient. Charger minimum power and vehicle limits need separate checks.
What should I check before using this estimate?
Vehicle consumption should exclude charging losses because efficiency applies them separately. This is an energy balance; charging at the chosen power may require the grid or storage even if daily solar energy is sufficient. Charger minimum power and vehicle limits need separate checks.