It is a consensus in the industry that solar energy resource data must be paid attention to in carrying out photovoltaic projects; However, many people ignore the “basic meteorological elements”.
What are the basic meteorological elements?
1. Temperature
1. Solar cell crack
Causes:
A. The solar cell is caused by an external force during welding or handling.
B. The solar cell is not preheated at low temperature and expands after being suddenly exposed to high temperature in a short time, resulting in cracks.
C. The instantaneous temperature is too high during welding.
The solar panel processing technology is an important part of the solar photovoltaic industry chain. By packaging thin solar cells one by one, it can operate reliably in harsh outdoor environments.
At present, the packaging form adopted by the mainstream solar panel processing technology is EVA adhesive film packaging, which is composed of solar panel detection, solar panel single welding, solar panel series welding, solar panel lay up, solar panel lamination, installation frame and junction box, finished product testing, packaging, and warehousing, etc. Each process is closely linked. Therefore, the process level of each process directly affects the quality and grade of products.
More and more American families have purchased roof solar panels for their own reasons of energy conservation and environmental protection. Moreover, the use of solar panels can save electricity bills for all: over a 20-year period, homeowners using solar energy can save an average of $56000 in New York, $63000 in Boston, and $90000 in Los Angeles.
With the increasing scarcity of non-renewable energy resources on earth, the development and utilization of renewable energy has attracted more and more attention. For example, solar energy resources are inexhaustible green and environmental protection new energy products. The state has also issued relevant policies to encourage and support the development and utilization of solar energy.
What is photovoltaic?
Photovoltaic industry, PV for short. 76% of China’s land has abundant light and the distribution of light energy resources is relatively uniform; Compared with hydropower, wind power, and nuclear power, solar power generation has no emission and noise, mature application technology, safety, and reliability.
In addition to large-scale grid-connected power generation and off-grid applications, solar energy can also be stored by pumping, superconductivity, storage battery, hydrogen production, and other ways.
1. Solar power generation uses the natural energy of the sun to generate electricity. Specifically, solar panels capture certain wavelengths of solar radiation and convert it into electricity for homes, calculators, etc.
2. Photovoltaic cells in solar panels cause the reaction between photons and electrons on the atomic scale. When photons (light) collide with electrons, electrons bounce up. The electrons are then captured and directed into available electricity.
“Photovoltaic + agricultural greenhouse” is a hot rural income generation model at present. Maybe you just listen to us: photovoltaic agricultural greenhouse, don’t know what’s going on. So what are the advantages and types of the photovoltaic greenhouse? How are the benefits? Now let’s learn about it.
Type of photovoltaic greenhouse
The technical experts and agricultural experts who designed the greenhouse told us that the crops suitable for different shed types are different. In combination with the differences in geographical environment, the crops will be different. At present, there are more than 20 shed types for 5 generations, among which the common photovoltaic shed types and planting types are as follows:
Many times, we see that the solar street lamp is not on at the roadside. What happened? In addition to life expiration, the following reasons will also cause solar street lamp does not work.
The solar panel is damaged. If the solar panel is damaged, there will be no electric energy storage in the whole solar street lamp system, resulting in no energy supply for the solar street lamp. At night, the solar street lamp does not light because there is no electric energy supply.
The working environment of solar panels is different, and the requirements for the adaptability and weather resistance of solar panels are very strict, which requires solar panel manufacturers to control the quality when selecting raw materials. In all raw materials, the importance of junction boxes is very prominent.
As an important component of solar panels, the solar photovoltaic junction box is a connector between the solar cell array composed of solar panels and the solar charging control device. It is a cross-domain comprehensive design integrating electrical design, mechanical design, and material science, which provides users with a combined connection scheme of solar panels.