Wall-mounted solar panels are an efficient way to generate electricity, especially for those without sufficient roof space. Here are the steps and precautions for installing solar panels on the wall.
Steps:
1. Choose suitable solar panels: When selecting solar panels, you should consider the surface area and angle of the wall to ensure that it can fully absorb sunlight and generate electricity. . Generally speaking, the wall angle should be between 20 and 45 degrees, and the solar panel model should also be selected according to this angle.
2. Choose the appropriate installation location: You should choose the location closest to the power grid for installation to facilitate the return of electricity to the grid.
3. Prepare installation tools and materials: Some necessary tools, such asskateboard nails, oxidized steel screws, etc., and the necessary installation materials, such as aluminum mounting brackets, junction boxes, etc. prepared.
4. Mounting Bracket: The mounting bracket must be installed in a pre-selected location on the wall. Make sure the mounting bracket is parallel to the wall and secure.
5. Install the solar panel: Install the solar panel on the bracket and use steel screws to fix the solar panel to the bracket to prevent it from moving under strong wind pressure.
6. Complete the electrical connection: You can use a junction box to connect the solar panel to the electrical system and ensure high-quality wiring to avoid damage to the panel.
Notes:
1. Before selecting solar panels, you should measure the wall angle and space to ensure that you select the solar panel sizeappropriate.
2. Before installing solar panels, make sure the wall is dry, flat and solid to ensure the mounting bracket is secure.
3. When handling electrical connections, precautions should be taken and safety fuses and cables should be used according to the actual situation.
4. Wall-mounted solar panels are only suitable for walls with solid structures such as brick walls, steel structures and cement walls, and installation should always be carried out in accordance with the design guidelines.
Which direction is best for solar panels?
Calculate based on the latitude and season of your location. Assuming your latitude is X degrees north latitude, the tilt angle is between summer solstice X- 23°26' and winter solstice X +23°26'. If it needs to be corrected, it is more appropriate to prend the average value X degrees.
It is preferable that the solar panels face south.
Solar panels should face the sun and get the most sunlight. The azimuth angle of the panels on common solar street lights in life is generally chosen to be in the south direction, which can optimize the power output of solar panels per unit time if the solar street lights are installed in places such as roofs. slopes, mountains and building structures. When considering restrictions on shadows, etc., you should consider how to make full use of the existing land and effective area, and try to avoid shadows generated by surrounding buildings, structures or trees.
As long as it is correct ±20° south it will not have a big impact on power generation, if conditions allow it should be as far away as possiblethe less than 20° southwest so that peak solar energy production occurs after noon. beneficial in winter. Duoduo produces electricity. When the installation area of solar panels in the south direction is not large enough, the solar panels can also be installed in the east and west directions.
Selection of the tilt angle of the solar panels:
The ideal tilt angle is to make the annual energy production of the street lighting solar panels as large as possible, so that in winter The difference in electricity production between summer and summer is as small as possible. Generally, local latitude or local latitude plus a few degrees is used as the tilt angle for local installation of solar cell module. (Generally, the tilt angle is 30 degrees in areas south of the Yangtze River and 45 degrees in areasnorth of the Yangtze River.)
Of course, if computer-aided design software can be used, the solar tilt angle optimization calculation can be carried out, it would be better to be able to take both into account, which is particularly important for high latitudes. There is a very large difference in horizontal solar radiation between winter and summer at high latitudes.
If the design is based on horizontal plane radiation parameters, the storage capacity of the battery in winter will be too large, resulting in an increase in the design capacity and investment of the battery. battery. By choosing the optimal tilt angle, the difference between winter and summer radiation on the solar panel becomes smaller and the battery capacity can also be reduced. A balance is found, which reduces the cost of the entire solar street lighting system. lakemore reasonable conception.