Daqing street lamp

Advantages of solar street light for energy conservation and environmental protection, green cleaning has been widely applied in the construction of rural road lighting. Why didn't the solar street light is widely used in urban areas? I believe you have such a doubt in my heart. Below small make up for this

solar street lights because of its advantages of energy-saving, environmental protection, green, clean, widely used in construction of rural road lighting. Well, then why haven't solar street light has been widely used in urban areas? I believe that everyone in the mind have such doubt. The following is a simple answer to the question.

first of all, the solar energy is a kind of unstable energy. Continuous rain, if it is impossible to ensure that 100% of the energy supply solar street lamps. Need to stabilize city street lamp lighting. Second, solar street lamps using solar panels absorb sunlight, produce effects of photovoltaic power generation, and there are a lot of tall buildings and trees in the city, this will keep out some solar panels, so as to reduce the number of solar street light. Third, the urban road on both sides of the street lamp height is much higher than in rural areas of solar street light, need better lighting. Therefore, you need to use the high-power lamp head, which will lead to high configuration of solar street lamps and solar panels of big size, but light pole of solar panels can't install too much, thus affecting the street lamp lighting. Fourth, widely used in solar street light led light source with high pressure sodium lamp on the tonal and emittance have certain differences. Fifth, solar cells need to be replaced in four to five years. Currently, most solar cells are buried in the ground. So, replace the battery must be carried out during the construction, it's not convenient to urban construction. Although the solar street light is a good thing, but they also have limitations. I believe, with the progress of technology and solar street lamps manufacturer's continuous development and improvement of these problems will be solved in the future.