The PV combiner box serves as a central hub for connecting multiple solar panels, consolidating the electrical outputs and streamlining them into a unified DC (Direct Current) output. This centralized approach simplifies maintenance, monitoring, and enhances overall system. A combiner box is an electrical device used in solar installations to combine the output current from multiple solar panels into a single circuit, improving system efficiency and offering safety features like overcurrent protection. It is also sometimes called a PV distribution box or a DC distribution box. Its core function is to connect the DC output of multiple power generation units (such as photovoltaic. This paper presents a detailed investigation of an emergency power supply that enables solar photovoltaic (PV) power integration with a battery energy storage system(BESS) and a wireless interface. Generally equipped with surge protectors, leakage protectors, isolation switches, fuses, etc.