An improved base station power system model is proposed in this paper, which takes into consideration the behavior of converters. The communication base station installs solar panels outdoors, and adds MPPT solar controllers and other equipment in the computer room. The power generated by solar energy is used by the DC load of the base station computer room, and the insufficient power is supplemented by energy storage. More options to achieve the required technical performance related to anti-islanding Well-defined requirements for transformerless inverters. Standards are absolutely necessary to define clear rules It is desirable to have globally accepted standards to reduce costs The IEC is the forum to create. Other than PV Modules and Inverter/Inverters, the system consists of Module Mounting Structures, appropriate DC and AC Cables, Array Junction Boxes (AJB) / String Combiner Boxes (SCB), AC and DC Distribution G id is available w modules. The inverters are available from 100 kW up to 500 kW, and are optimized for cost-efficient multi-megawatt power plants. Unrivalled expertise from the world's market and.