Installing a solar panel for home use that can generate electricity is very simple. It mainly requires five parts: solar panels, solar brackets, cables, photovoltaic inverters, metering meters and energy storage batteries installed by the grid company.
1. The purchase of solar panel for home use
It is necessary to determine how many square meters of solar plate for home to buy according to the electricity demand of one's own family. Currently, solar cells on the market are divided into amorphous silicon and crystalline silicon. Among them, crystalline silicon can be divided into polycrystalline silicon and monocrystalline silicon. From the perspective of the photoelectric conversion efficiency of those three materials, that is, monocrystalline silicon (up to 17%)> polycrystalline silicon (12-15%)> amorphous silicon (about 5%).
Crystal silicon (single crystal silicon and polycrystalline silicon) basically has no current under low light, and amorphous silicon is light (the energy is inherently small under low light). So on the whole, monocrystalline silicon or polycrystalline silicon household solar panel materials should be used. Considering that monocrystalline silicon materials are expensive, polycrystalline silicon materials are generally used. If you choose a polysilicon solar panel with a power of about 250W, then it means that a 5KW system requires 20 panels.
2. Solar bracket for solar panel for home use
Solar photovoltaic bracket is a special bracket designed for placing, installing and fixing solar panels in solar photovoltaic power generation systems. You have to be carefuol in choosing the solar panel supplier. The general materials are aluminum alloy and stainless steel, and the service life is longer after hot-dip galvanizing. Brackets are mainly divided into two categories: fixed type and automatic tracking type.
At present, some fixed brackets on the market can also be adjusted according to the seasonal changes of the sun's rays. Just like when they are just installed, the slope of each solar panel for home use can be adjusted to adapt to the light by moving the fasteners. At different angles, the solar panel can be accurately fixed at the designated position by tightening again. The automatic tracking solar support has a rotating device, which can adjust its angle with the rotation of the sun like a sunflower, and has a high utilization rate of light energy.
The bracket must be firm and reliable, and it is best to withstand a level 12 typhoon. Of course, the bracket fixing requirements are generally based on the largest typhoon in the local history.
3. Cables for solar panel for home use
Choose the appropriate cable specification according to the power consumption. Generally, it is recommended to select a cable that can withstand the maximum current of the electricity to be larger to ensure that the cable will not be burned.
4. Photovoltaic inverters for solar panel for home use
It is necessary to select a photovoltaic inverter with suitable power according to the electricity demand, otherwise it will cause unstable electricity consumption and affect the service life of the entire solar power generation system.
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