The Industry Perspective for Optimizing Photovoltaic Battery Storage

In general, the supply chain of photovoltaic production has 13 layers. Start form silicon synthesis, ingot production, wafer production, cell production, module assembly, PV cell production, cell cutting, cell sortering, laying test, framing laminating, PV cell testing, electricity test, and flash test. As stated on PLN’s Focus Group Discussion about Conversion Program from Diesel Power Plant (PLTD) to Solar Power Plant (PLTS) and Battery on May 10^th 2021, Indonesia manufacturing progress still start from five layer (module assembly).

On the word of Sol Gui Jing Kang, Leader fusion solar smart pv solutions for regional Singapore and Indonesia Huawei, inverter technology takes a part on optimizing photovoltaic battery storage. There are two types of inverter technology, string inverter and central inverter. Theoretically, central inverter are much larger than string inverter. Sizes range from 125 kW to 2.5 MW, with even the smallest central inverter variants larger than the biggest string inverter. On the other side, string inverter is mainstay of both commercial and residential solar project. Rather than central inverter that exclusive to utility-scale applications. Central inverter utilization mostly on industrial facilities, large buildings, and field arrays. In conclusion, inverter technology is crucial due to affecting performance and efficiency of PV battery storage.