The nominal voltage of the lithium iron phosphate battery is 3.2V, the high end charge voltage is 3.6V, and the low end discharge voltage is 2.0V. Due to the different quality and process of positive and negative electrode materials and electrolyte materials used by various manufacturers, there will be some differences in their performance. Take 12.8V100AH for example: 1. Lithium iron phosphate ba...

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...

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...

The power generation of a photovoltaic power station not only depends on the power generation performance of the photovoltaic power station itself, but also is closely related to the later operation and maintenance. Correct operation and maintenance can not only increase the power generation, but also greatly improve the service life of the equipment and power station. Let's discuss the main facto...

The power generation of photovoltaic power plants is determined by many factors, among which the key factors are irradiance and ambient temperature. Hot summer is often accompanied by high temperature, not high irradiance. The temperature characteristics of solar modules are negative temperature coefficients, and the power generation performance of modules will decrease as the temperature increase...

First of all, the basis of the working principle of solar cells is the photovoltaic effect of the semiconductor PN junction. The so-called photovoltaic effect is an effect in which electromotive force and current are generated when the object is illuminated, the state of charge distribution in the object changes. When sunlight or other light hits the PN junction of the semiconductor, a voltage app...

The warranty of a solar system involves solar panels, inverters, installations and various other components. Owners always want to be effectively guaranteed throughout the life cycle of the solar system, and they know that it is important to choose the right solar panels and inverters. , it is also important to know that these components are properly installed. But when it comes to warranty, there...

1、What’s the difference of Hybrid ACDC and normal air conditioner? Hybrid ACDC does not need inverter or battery, it works with unstable solar panel DC power at day time. At night or rainy days it automatically gets AC power. It is mainly used for school classroom, hospital, restaurant, shops, office… Normal air conditioner works with AC power. When AC power is not available, or with too big fluct...

With the popularization and application of industrial and commercial photovoltaics, more and more industrial enterprises are using their factory roofs to build photovoltaic power generation system. There is usually no objection to installing photovoltaics on the south slope, but how to deal with the installation of photovoltaics on the north slope of the color steel roof. Whether to continue to us...