The requirement
A retail unit uses lighting, point-of-sale equipment and cooling throughout the trading day. The owner is exploring solar and limited backup.
The planning approach
List daily operating hours and distinguish essential checkout and lighting circuits from cooling. Review roof permission and shade, and collect bills or measured demand where available.
The decision to validate
Use the solar tool for a first energy estimate, then review inverter and battery requirements separately. Final output and economics need a site assessment.
