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 large number of solar panels installed in the early 2000s is approaching the end of its life cycle, which poses a serious problem for the solar industry, and current solar panel disposal methods fall far short of environmental requirements. In theory, solar energy is more promising than ever. Solar cells are getting easier and cheaper to produce. But solar PVs have some less-talked-about quest...
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...
There are various currents inside the cell, such as dark current, reverse current, leakage current, etc. Various currents have a greater or lesser impact on the power of solar panels. Distinguishing the characteristics of various currents can identify the cause of abnormal solar panel power and help solve the problem completely. dark current Dark current (DarkCurrent), also known as unilluminated ...
At present, there are many models of inverters on the market. In order to simplify management and explore the advantages of centralized procurement, many EPC manufacturers often use limited inverter models to do as many field designs as possible, which will inevitably involve the reduction of inverters. Content usage issues. A small reduction in capacity is not a big problem; but a large reduction...
Photovoltaic inverters are composed of circuit boards, fuses, power switch tubes, inductors, relays, capacitors, displays, fans, radiators, structural parts and other components. The service life of each component is different. The service life of the inverter can be explained by the "barrel theory". The maximum capacity of the barrel is determined by the shortest board, and the service life of th...
The South Korean Ministry of Industry, Trade and Energy (MOTIE) approved a solar panel recycling program at a ministerial meeting held by Prime Minister Han Duk-soo a few days ago. It is reported that the new regulations establish a standardized collection system for each major region of the country to ensure that the recycling/reuse rate of waste solar panels exceeds 80%. At the same time, the pl...
In recent years, with the continuous reduction of the cost of photovoltaic power generation, photovoltaic power generation has gradually become the main energy source in the new power system. Module products are the core power generation equipment of photovoltaic power stations, and their safety and reliability will directly affect the power station long-term stable operation. Ensuring the quality...
Recently, the power shortage in South Africa has intensified. In order to deal with the energy crisis, the South African government announced that it will encourage private enterprises to increase investment and promote the construction of renewable energy power generation projects while increasing electricity imports. It is understood that in the past few years, South Africa has experienced power...
Recently, it was reported that the Irish government has announced that it will cancel the VAT rate on the supply and installation of solar panels from May 1. Irish Environment Minister Eamonn Ryan has announced that VAT on the supply and installation of solar power system for homes and public buildings will be abolished. The 23% VAT rate will be reduced to 0%, which is expected to save households ...
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...