How many square meters of solar panels to buy depends on the electricity demand of your family. Generally, polycrystalline silicon/monocrystalline silicon is considered as the solar cell material. However, due to the high cost of monocrystalline silicon materials, polycrystalline silicon materials are generally used. If you choose a polycrystalline silicon solar panel with a power of 250W, then a 5KW system needs 20 panels.
The solar bracket is a special bracket designed for installing, placing, and fixing solar panels in a solar photovoltaic power generation system. It is usually made of stainless steel or aluminum alloy, and the service life is longer after hot-dip galvanizing. A solid and reliable photovoltaic support should preferably withstand the test of a typhoon of level 12, but generally the support is fixed according to the largest typhoon in the local area over the years.
Appropriate cable specifications should be selected according to the power consumption. Usually, in order to ensure that the cable will not be burned, it is recommended to select a larger maximum current that the cable can withstand.
Photovoltaic inverters with appropriate power should also be selected according to electricity demand, otherwise it will lead to unstable electricity consumption and affect the service life of the entire solar photovoltaic power generation system.
- Battery for energy storage
The storage battery has the function of storing the electric energy from the solar panels when the light is shining, and releases it when needed. Purchasing batteries according to demand, and installing them in series and parallel combinations according to the needs of electrical equipment.