Solar photovoltaic module Modules are generally divided […]
Solar photovoltaic module
Modules are generally divided into two parts: single crystal and polycrystalline. Of course, single crystal polycrystalline also has A side and B side, so this is why the price of components with the same configuration on the market will be so much different. What's up. The function of the module is to use solar energy to convert it into electrical energy that can be stored in the battery. The current conversion rate of single crystal is up to 17%, and polycrystalline is about 12%.
The battery can be installed on a solar pole or buried in the ground as a function of storing and releasing electrical energy. The function of the battery box is to protect the battery from underground. The electrical energy converted by solar photovoltaic modules is stored in the body, and it starts to discharge at night when the controller instructs it. The product quality of manufacturers with different technical capabilities is as different as the corresponding price.
The main bone and big heart of the street light system, for example, the image of the human heart is good, people can function normally without problems. If the heart has a problem or fails, other parts of the body will not be useful. The quality of the controller directly affects the life of the solar lights manufacturer system. It is best to choose a certain brand, such as Nanjing Putian, Shenzhen Shuoliang, and so on.
led light source
Now generally on the market, flat lamp heads are used, and the light source is optional. Mainly on these two accessories, the traditionally changed led lamp head has a larger housing, which has a lower heat dissipation performance. The flat lamp head is flat and looks higher-end. The lamp head has built-in heat dissipation. There are domestic and imported points on the light source, and domestic technical reasons make it generally import-oriented. The better ones are Puri and Kerui. Puri also has 33 and 45, which are different. The price of the selected LED light source is also different
5.Solar street light pole
The light pole part is customized according to the customer's requirements for the pole shape and configuration parameters at the beginning of the design. Different sizes and styles require different prices.
Working principle and advantages of solar street lights
How solar street lights work
The working principle of solar street light is to convert solar energy into electricity to achieve lighting. The top of the street light is a solar panel, also known as a photovoltaic module. During the day, these polysilicon photovoltaic modules convert solar energy into electricity and store it in a battery, so that the solar street lamp is intelligently controlled. Under the control of the device, the solar panel is irradiated with sunlight, absorbs the solar light and converts it into electrical energy, and the solar cell module charges the battery pack during the day. In the evening, electrical energy is sent to the light source through the control of the controller to illuminate people at night. The battery pack provides power to the LED light source at night to achieve the lighting function.
Solar street lights use solar energy to generate electricity, so there is no cable and no leakage or other accidents will occur. The DC controller can ensure that the battery pack is not damaged due to overcharge or overdischarge. At the same time, it has the functions of light control, time control, temperature compensation, lightning protection and reverse polarity protection. No cables, no AC power, no electricity costs.
A series of advantages such as low-carbon environmental protection, safety and reliability of solar street lights have been recognized by customers, and have been vigorously promoted. Therefore, it can be widely used in urban main, secondary arterial roads, communities, factories, tourist attractions.
Working principle and advantages of solar street lights
Advantages of solar street lights
1, Energy Wide
Solar street lights use solar photovoltaic cells to provide electricity. Solar energy, as a green and environmentally friendly new energy, is "inexhaustible and inexhaustible." Making full use of solar energy resources has a positive significance for alleviating the tension of conventional energy.
2, simple and convenient installation
The installation of solar street lights is simple and convenient. There is no need to do a lot of basic engineering such as laying cables like ordinary street lights. It only needs a base to be fixed, and all the wiring and control parts are placed in the light frame to form a whole.
3, low maintenance cost
The solar power used by solar street lights, except for a small part of the electricity costs incurred by the conversion to commercial power in rainy and rainy days, has almost zero operating costs. The entire system operation is controlled automatically, without human intervention, and almost no maintenance costs.
Advantages of solar street lights over ordinary street lights
1, installation comparison
During installation, it is not necessary to provide complicated lines, only a cement base and a battery pit within 1m can be fixed with galvanized bolts.
There are complicated operating procedures in the construction of city circuit lights. First of all, it is necessary to set up auxiliary cables, dig trenches, lay pipes, thread inside pipes, backfill and other large-scale civil construction, which consumes a lot of manpower, material resources and financial resources. Finally, you need to debug, and if there is a problem, it will cause a lot of consumption.
2. Cost comparison
Solar street lights benefit from a single investment and long-term benefits. Because the lines are simple, maintenance costs are not generated, and expensive electricity costs are not generated. The cost will be recovered in 6-7 years, and over 1 million electricity and maintenance costs will be saved in the next 3-4 years.
The electricity cost of the city's circuit lights is high, and the lines are complicated, and the lines need to be maintained for a long period of time. In the case of special voltage instability, it is inevitable that the sodium lamp is susceptible to damage. With the extension of the service life, the aging of the line and the maintenance cost increase year by year.
3. Safety comparison
Solar street light is an ideal product for ecological community and road administration department because it adopts 12-24V low voltage, stable voltage, reliable operation and no hidden dangers.
There are many hidden dangers to the safety of the city's circuit lights. People's living environment is constantly changing. Road reconstruction, landscape construction, abnormal power supply, and cross-construction of water and gas pipelines have brought many hidden dangers.
Solar street lights can add new selling points for the development and promotion of noble ecological communities; continuously reduce the cost of property management and reduce the cost of the owners' public contribution. In summary, the inherent characteristics of solar lighting with no hidden dangers, energy saving and consumption, green environmental protection, easy installation, and automatic control and maintenance-free will bring obvious usable advantages directly to the sales of real estate and construction of municipal engineering.
5, life comparison
The service life of solar lamps is much higher than that of ordinary electric lamps. For example, the main parts of solar lamps-the service life of solar cell modules is 25 years; the average life of low-pressure sodium lamps is 18,000 hours; Lifespan is 6000 hours; the average life of super bright LED is more than 50,000 hours; the life of solar battery is 2-5 years below 38AH; 3-7 years from 38-150AH. According to the rules of the local community, according to the local price bureau, "the residential street lamp maintenance fee of 6 yuan per square meter is charged based on the pure residential construction area", which makes the initial investment of ordinary lamps much higher than the initial investment of solar lamps. In short, it is quite obvious that solar luminaires can save investment in a comprehensive comparison.