High-Efficiency 9.28kW Rooftop Solar System For Polish Family Use

A 9.28kW residential rooftop solar system was successfully installed on a metal roof in Warsaw, Poland.

Featuring 16pcs of 580W Sunpal N-Type TOPCon bifacial solar panels, a 10kW hybrid/grid-tied inverter, and a durable metal roof mounting structure. With an estimated annual energy production of around 9,700kWh and provides reliable clean energy for the household, helping reduce electricity costs, improve solar energy utilization, and increase energy independence. The system also supports optional LiFePO4 battery storage integration, offering greater flexibility and backup power capability for long-term residential energy needs.