Compared with the whole solar cell, the trend of half solar cell is obvious. The most popular explanation is that the current of half solar cell is only half of the original, so the power loss is low.

However, the advantage of half-cell technology is far more than power loss. This article will use the most popular explanation to tell you why half solar cell technology will replace the whole solar cell technology in the future.

Why is there a deviation in the color of solar panels? This question once puzzled not only photovoltaic people, but also many users who installed photovoltaic power generation systems. I don’t know whether it will affect the use. Next, we will answer this question for you. Why are there color differences in photovoltaic cells?

In fact, the color of solar cells is mainly affected by velvet, including flower chips, red chips.

The red sheet is mainly caused by the low corrosion of cashmere making. If the flocking corrosion is less than 3, the damaged layer of the silicon wafer will not be removed completely, resulting in the overall red color after PE coating.

Use solar power to supply daily household electricity; Grid-connected power generation, selling excess electricity to the state in exchange for income. Home solar power generation system saves money and is environmentally friendly, which makes many families eager to try.

But the ideal is always beautiful. The reality is that many people are deterred by their inner confusion and insecurity when facing the last step – installation.

1. Test conditions of solar cell array

Since the output power of the solar cell module depends on the solar irradiance, the distribution of the solar spectrum and the temperature of the solar cell, the measurement of the solar cell module shall be carried out under standard conditions (STC).

The measurement conditions are defined as Standard No. 101 by the European Commission, and the surface temperature of the solar cell panel is set at 25 ℃, The test under the condition that the solar radiation intensity is 1000W / ㎡ is called the standard test state.

1. Installation of solar cell module

Firstly, the solar cell modules are transported to the channel between the rows or columns where the solar cell array is installed, in order to speed up the installation speed of the construction personnel.

During transportation, it shall be noted that the solar cell modules shall not be stacked too high. During the transportation and storage of solar cell modules, they shall be handled with care, without strong impact and vibration, transverse heavy pressure and collision. Special attention shall be paid to prevent the backplate materials on the glass surface and back of solar cell modules from being directly impacted by hard objects.

Solar panel installation

Put the solar panel flat first, so that the solar panel support can be placed flat on it. The solar panel shall be firmly fixed on the support with bolts, nuts and gaskets. When the solar panel is placed vertically, the junction box shall be located above. When the solar panel is placed horizontally, it shall be close to the direction close to the lamp pole assembly.

Precautions: avoid abrasion and scratch of solar panel surface during operation.

Now we can see solar street lamps everywhere in the streets. Among them, solar panels (also known as solar cell modules) are the core components and the most important part of solar power generation system.

Let’s learn how to distinguish the quality of solar panels.

1. Look at the front

First, carefully check the surface of tempered glass, which is also the negligence of some solar panel manufacturers. If silica gel is accidentally dropped on the surface of tempered glass, it shall be removed in time. If it is not removed, it will affect the power generation efficiency of solar panels.

Wind solar complementary lamp is a new energy solar street lamp. Because they have more advantages than solar street lamps, they have been widely promoted. Therefore, wind solar complementary lamps have high requirements for solar panel technology:

1. The anodized lead oxide frame has high mechanical strength, wind resistance, hail resistance, corrosion resistance and other properties.

2. It can be used under various complex and harsh climatic conditions, such as windy, high temperature, cold and other climatic conditions.

As a kind of connection equipment, the photovoltaic junction box is mainly used between solar charging control equipment and solar cell array (composed of solar photovoltaic modules). This comprehensive product is cross-industry, integrating material science, mechanical and electrical design.

Among the constituent elements of solar photovoltaic modules, the function of the junction box is prominent. Photovoltaic module protection, connection and current transmission are its basic functions. The junction box can adhere to the backplate of the solar panel with silica gel.

1. Mechanical properties of photovoltaic modules

As an ordinary photovoltaic module, as long as it passes the detection of IEC61215, it meets the requirements of resisting 130km / h (2400pa) wind pressure and 23m / s hail with a diameter of 25mm.

Photovoltaic modules used as curtain wall panels and daylighting roof panels need to meet not only the performance requirements of photovoltaic modules, but also the three property test requirements of curtain walls and building safety performance requirements. Therefore, they need to have higher mechanical properties and adopt different structural methods.