By August 2021, the price will be 4-5 yuan per meter.
The installation cost of photovoltaic power generation is mainly the cost of equipment, including: photovoltaic modules account for about 49% of the total investment, inverters and other electrical equipment accounts for about 10%, cables and slices each account for about 10%, and different photovoltaic installation companies have their own pricing standards.
Installation capacity varies greatly depending on component capacity and installation angle. Generally speaking, each kilowatt of photovoltaic power generation system can generate four kilowatt hours of electricity per day and requires 10 square meters of installation area. If the installation scale is 3-5kW, the investment cost will be about 30,000-50,000 yuan.
Precautions for productionPhotovoltaic Solar Power Systems
For photovoltaic power generation systems that operate for a long time, the impact of dust accumulation on the panels cannot be underestimated. The dust on the surface of the panel has the function of reflecting, scattering and absorbing solar radiation, which can reduce the transmission of the sun, causing the panel to receive less solar radiation and reduce the output power. Its effect is proportional to the accumulated thickness. dust.
At the same time, other parts of the photovoltaic panel will also be corroded by wet dust, such as joints, brackets and other parts. The materials are mainly made of various types of metals. Corrosion can easily lead to damage. , weakened security and other problems, which can be damaged by natural factors such as strong winds and tremorsof earth, thus reducing the lifespan of photovoltaic panels.
The current price of solar panels is 255 to 270 yuan each.
Factors affecting the price of home solar panels:
1. The Impact of Weight on Price
When the camper leaves the factory, the camper manufacturer will limit the weight of the camper to comply with state policy. The weight of the camper, various appliances and daily necessities take up a lot of weight. Lighter is better while still maintaining the efficiency of the solar panel, and the lighter the solar panel, the higher the price.
2. The impact of temperature on price
When the temperature of the solar panel is 25°C and the light is 90°, the power generation efficiency is the highest. When the temperature exceeds 25°C, the electricity production of solar panels will be reduced by 0.3% for each 1°C increase in temperature. When glass is used as a packaging surface, the temperature of the battery will increase significantly due to the light transmission and thermal conductivity properties of glass, which will affect electricity generation.
Detailed information:
Tips for purchasing home solar panels: < p>1. Solar cell packaging form selection
For low-power solar lawn lights less than 1W, if there are no excessive life requirements, the solar cell packaging form Glue packaging can be used. There are regulations on shelf life. . For solar lamps, it is recommended to use plastic packaging.
2. Solar cell power selection
The output power Wp of the solar cell is the standard solar power.The output power of the solar cella solar cell in lighting conditions, namely: standard 101 defined by the European Commission, radiation intensity 1000W/m2, air quality AM1.5 and battery temperature 25°C.