This paper compares the different review studies which has been published recently and provides an extensive survey on technical specifications of grid connected PV. . Highjoule HJ-SG-R01 Communication Container Station is used for outdoor large-scale base station sites. Easy to Transport The cabinet is made of lightweight aluminum alloy, allowing for manual transportation. It supports factory prefabrication and can be lifted and installed as a whole unit ≤4000m. . BoxPower's flagship SolarContainer is a fully integrated microgrid-in-a-boxthat combines solar PV,battery storage,and intelligent inverters,with optional backup generation. 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. . The on-site installation is undertaken by the Off-Grid Installer team and after all clients are included in the online remote monitoring service. The whole system is plug-and-play, easy to be transported, installed and maintained. The durable container design is completely waterproof, protects you and your equipment from. .