Give each installer your electricity usage, backup needs, roof or site details, and the appliances you want to run. Ask for the proposed panel, inverter, battery, mounting, protection, and monitoring details. Check whether the design explains usable capacity and expected performance for your use case rather than relying on a headline system size.
Ask who handles installation, commissioning, warranty claims, and maintenance, and which warranties belong to the manufacturer versus installer. Request an itemised quote and written assumptions. Browse service businesses on KobStore and compare written proposals from providers serving your location.
