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Compared with conventional street lights, do solar street lights have advantages in resource consumption and cost?

2020-09-28

If you calculate the cost, the cost of solar Led Street Lights in non-mountainous areas without electricity is undoubtedly too high compared with the city electricity led street lights at this stage.

Under the premise of the same quality, take the 6m, 50w solar LED Street Light and the city electricity 6m, 50w Led Street Light as an example, the installation area: the general village of northern Shaanxi with better light. Lighting time: 5h every day. (Solar street lights 3 rainy days). Generally, the material cost of solar energy is around 2000, and the installation cost is around 500, which is 2500. The cost of utility materials is 900.

In addition, the construction cost of wiring materials is only 700 on average. The initial cost differs by 900. The mains power is 0.25 kWh for 5 hours a day, 91 kWh for 365 days, 0.6 yuan per kWh (theoretical value). Only 55 yuan a year. In other words, solar street lights need to be used for at least 16 years to save money. But the actual situation is the shortcoming of solar street lights-the battery life is generally 3-5 years! A cost battery will cost 700-800! Not counting labor costs.

Taking environmental protection as an example, the production of lead-acid batteries (both lead-acid batteries and gel batteries on the market are lead-acid batteries) seriously pollutes the environment!

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