From May 24 to 26, the 16th SNEC International Solar Photovoltaic and Smart Energy (Shanghai) Conference and Exhibition resumed after one year. Companies from all over the world gathered at the Shanghai New International Expo Center to participate in the event.
The International Solar Photovoltaic and Smart Energy (Shanghai) Conference and Exhibition is the world’s largest photovoltaic exhibition. With an exhibition area of 270,000 square meters, 250,000 professional visitors, 3,100 exhibitors, and nearly 30 sub-forums held at the same time, it is a global communication platform to grasp the future trends of the global emerging energy industry.
Advantages of Solar Panel
Meanwhile, solar panels are becoming more and more popular over time. This is partly because they improve the efficiency of converting solar energy into usable energy. Compared with other new power generation technologies (wind power generation and biomass power generation, etc.), photovoltaic power generation is a renewable energy power generation technology in line with the ideal characteristics of sustainable development (the most abundant resources and the cleanest power generation process). The overall advantages can not be underestimated, and its main advantages are as follows:
1.The Resources of Light are Inexhaustible
The amount of energy that hits the Earth is 6,000 times greater than what humans currently consume. Moreover, the solar energy is widely distributed on the earth, so as long as there is light, the photovoltaic power generation system with solar panels can be used, and it is not restricted by regional, altitude and other factors.
2.Solar Energy Resources are Available Everywhere, Power Supply Can be Provided Nearby
Solar system with solar panel does not need for long-distance transmission, avoiding the power loss caused by long-distance transmission lines, but also save the transmission cost. It also opens the way for large-scale use of domestic solar power systems in the West, where transmission is difficult.
3. Simple Energy Conversion Process of PV Power Generation Using Solar Panel
Solar system using solar panel is the direct conversion from light to electricity, no intermediate process (such as heat energy to mechanical energy, mechanical energy to electromagnetic energy, etc.) and mechanical movement, no mechanical wear. According to thermodynamic analysis, photovoltaic power generation has a high theoretical power generation efficiency, which can reach more than 80%, and the technology development potential is huge.
4. Using Solar Panels to Generate PV Power does not Use Fuel
Using solar panels to generate photovoltaic power does not emit any substances including greenhouse gases and other waste gases, does not pollute the air, does not produce noise, is environmentally friendly, will not suffer from the impact of energy crisis or fuel market instability, is a truly green and environmentally friendly new renewable energy.
5. Solar Panel System does not Need Cooling Water
Solar panels can be installed on the desert Gobi where there is no water. Photovoltaic power generation by using solar panels can also be easily combined with buildings, constitute photovoltaic building integrated power generation system, does not need to occupy a separate area, can save valuable land resources.
6.Solar Panel System is Simple to Maintain and Stable, Reliable to Operate
A set of photovoltaic power generation system can generate electricity as long as there are solar cell modules, coupled with the wide use of automatic control technology, basically can realize unattended, simple maintenance and low cost.
7. Long Service Life of Solar Panels (More Than 25 Years)
Crystalline silicon solar cells can last up to 25 years. In the photovoltaic power generation system, as long as the design is reasonable, the modeling is appropriate, the service life of the solar panel will be longer.
8. The Installation of Solar Panel is Simple
Solar cell modules are simple in structure, small in size, light in weight and easy to transport and install. Photovoltaic power generation system construction cycle is short, and use according to the power load capacity can be large or small, convenient and flexible, easy to combine and expand.
In a word, the potential for new energy is growing, and now you can see all kinds of electric cars on the street. Obviously, the Canadian government is vigorously developing the new energy industry. In addition to electric cars, Natural Resources Canada’s Green home grant is up to $5,000 Canadian dollars.
It also offers an interest-free loan of up to $40,000 for the installation of a solar system, with repayment terms of up to 10 years. So more and more people are choosing to install solar panels at home, because not only is it good for the environment, but you can also save a lot of money on your electricity bill!
How to Choose It
Solar panel is a photoelectric semiconductor wafer that uses sunlight to generate electricity directly. It is a device that converts solar radiation into electricity directly or indirectly through photoelectric effect or photochemical effect by absorbing sunlight. Solar panels play a huge role in various fields of new energy. It is widely used, from small to domestic electricity consumption to large to photovoltaic station power generation.
The quality of solar panel modules is directly related to the energy efficiency of the products used. Now there are many manufacturers producing solar panels, and some inferior products are mixed in. It is not easy to choose good quality solar panels. Then I will introduce how to distinguish the quality of solar panels.
1. Check Out the Front Side
First, look carefully at the surface of tempered glass, which is where some solar panel manufacturers are careless. If the surface of tempered glass accidentally drops on silicone, it is necessary to remove it in time. If not, it will affect the power generation efficiency of the panel.
2. Check Out the Solar Cell
Many irregular manufacturers, in order to save costs, even use damaged solar cells to assemble, forming a seemingly complete solar cell. In fact, there is a great risk. The initial may not see the problem, but the spliced solar cell is easy to cause fracture in long-term use, thus affecting the use of the whole panel. The temperature is too high, there will be fire phenomenon, endangering the lives of pedestrians.
3. Check Out the Back Side
The back of the solar panel should be marked with technical parameters. Such as open circuit voltage, short circuit current, working voltage, etc. Secondly, to see the pressure effect of the back of the solar panel, if there are bubbles, folds and other traces after the pressure, the solar panel is listed as unqualified.
4. Check Out the Junction Box
The junction box is a kind of connector of the solar cell module. The main function of the photovoltaic junction box is to export the electric energy produced by the solar cell module through the cable. Whether the junction box is firm is also related to the working efficiency of the solar panel. The junction box cover should be firmly and tightly attached to the junction box, and the outlet wire lock should rotate freely and tighten.
Finally, in the purchase of solar panels must pay attention to the above points. In addition to the configuration of their own needs to choose, so that the selection of solar panel quality is more guaranteed, more safe and assured.