On the 23rd local time, the Office of the US Trade Representative issued a statement announcing the re-exemption of tariffs on 352 items imported from China. The new regulations will apply to imports from China between October 12, 2021 and December 31, 2022. s product. Exempted items mainly include industrial components such as pumps and motors, auto parts, chemicals, backpacks, bicycles, v...
After being approved by the South Korean board of directors on February 22, LG Electronics announced that the company will withdraw from the global solar module manufacturing business. LG Electronics said increased material and logistics costs and severe supply constraints were the main reasons for the decision to halt solar module manufacturing. It is reported that LG's 550MW solar ...
According to the latest annual clean energy statistics report released by the International Renewable Energy Agency (IRENA), the installed capacity of off-grid photovoltaic systems installed around the world has barely increased since the outbreak of theCOVID-19 in 2020. According to the report released by the agency, most of the countries that own and operate off-grid PV systems aroun...
PID effect is Potential Induced Degradation. The direct harm of PID to the module is that a large amount of charge accumulates on the surface of the cell, which aggravates the passivation effect of the cell surface, resulting in a decrease in the fill factor, open-circuit voltage and short-circuit current of the cell, and the power of the cell module is attenuated, and the attenuation degree can r...
As the "heart" of photovoltaic power generation, the health of the inverter is closely related to the smooth operation of the photovoltaic power generation system. It is necessary to understand common inverter alarms and accurately determine the cause of inverter alarms. 1. Inverter alarms not caused by internal devices If the screen or APP shows that the EEPROM fails, it can usually be repaired b...
When designing the inclination of the photovoltaic array, there is a big difference between the grid-connected power station and the off-grid power station, because the goals pursued by the grid-connected power station and the off-grid power station are different when generating electricity. The goal of grid-connected power stations is to maximize the annual power generation, that is, the design o...
In general, we call the process of converting DC power into AC power as inverter, the circuit that completes the inverter function is called inverter circuit, and the device that realizes the inverter process is called inverter equipment or inverter. Why are common grid-connected inverters only single-phase and three-phase? In fact, the main reason is the type of grid connected to the inverter. Fi...
To ask "What is the most feared problem of photovoltaic power generation?" Experienced people must know "the problem of shadow occlusion." 1. Small shadows, big hazards Because the position of the sun changes with the seasons and time, and the surrounding potential obstructions also change over time, anyone with experience in installing photovoltaic power plants understands that shadows are ...