Teach you how to turn your own roof into a photovoltaic power station ?
Teach you how to turn your own roof into a photovoltaic power station ？
1. What kind of roof is suitable for installing photovoltaic power plants?
The most suitable for installing household photovoltaic roofs are rural villas-the roofs are in good condition and unobstructed. You can observe whether there are obstructions around your own roof and whether the lighting conditions are good. Generally speaking, flat roofs and sloping roofs are more suitable for installing photovoltaic power plants.
flat roof
On a horizontal roof, the photovoltaic array can be installed at the best angle to obtain the maximum power generation; the biggest advantage of installing a photovoltaic power station on a flat roof is heat insulation and cooling, which can generally be cooled by 5 to 7 degrees, using cement piers + photovoltaic brackets. The investment cost is not high and the economy is relatively good.
Sloping roof
It is more beautiful to install photovoltaic power stations on sloped roofs. Due to the large slope of the roof, rainwater is easy to drain, and the construction is simple and easy to repair. This kind of roof-mounted photovoltaic power station does not need to increase the bracket and calculate the inclination angle to install the photovoltaic power station. During installation, it can be laid according to the inclination angle of the roof itself, and the installation capacity is not affected by the area. Due to the large slope, it can also have the effect of automatically cleaning the power station.
3. How big a photovoltaic power station can be installed on the roof of my house, and how much will it cost?
According to the size of the roof area of one's own house, the general family roof can be installed in 3kW-10kW household projects, of course, if the area is larger and higher-power modules are used, larger projects can be achieved. Under normal circumstances, a roof of about 10 square meters can be installed with 1kW. Adjusting the array and actual layout, using high-power components, can also achieve 7-8 square meters to make one kilowatt.
The pricing and billing method of most photovoltaic power plant systems is based on watts. The current market price is between 3.5 yuan and 4 yuan per watt (the current market price increase is a serious problem, and the specific price is mainly based on the quotation of local installers). Therefore, if you have a roof of 100 square meters in your home, you can install a photovoltaic power station of about 10kW. If you quote a system price of 3.5 yuan per watt, you will need to invest about 35,000 yuan.
