Why are solar street lights rarely used in cities?

Solar street lights are popular in rural areas because of their green environmental protection and other advantages. However, it seems that in cities, solar street lights have become 'rare itemsSince it has so many advantages, why do cities rarely use it? I believe that many friends have such a question, and the following solar street light manufacturers will solve this question for everyone.

1. Solar energy is an unstable energy source. If there are many consecutive cloudy and rainy days, the supply of energy for street lights cannot be 100% guaranteed. And city street lights need stable illumination.
2. Solar street lights use solar panels to absorb sunlight for photovoltaic effect to generate electricity. There are a large number of tall buildings and trees in the city, which will shade some solar panels and reduce the power generation of solar street lights.
3. The height of street lamps on both sides of urban roads is much higher than that of rural solar street lamps, and they also need better illuminance. Therefore, high-power street lamp heads are required. This leads to the need for high solar street lamps and large solar panels. , But the solar panels on the pole of a street light can’t be installed too much, so the illuminance of the lamp head is affected.
Fourth, LED street lamp heads, which are widely used by solar street lamps, have a partial gap with high-pressure sodium lamps in hue and divergence.
5. The batteries of solar street lights need to be replaced in about four or five years. At present, most batteries are buried in the ground. Therefore, construction is required when replacing the batteries, which is inconvenient for construction in cities.

Although solar street lights are a good thing, they also have limitations. I believe that with the advancement of technology, solar street light manufacturers continue to develop and improve, and I believe that the above problems will be solved in the future.