Wind and solar complementary lighting power supply system Cidong large-scale application


With one-time investment, the inexhaustible wind and solar energy can make the street lighting cost zero. In Fudong Road and Cidong Avenue in Cidong Industrial Park, the wind and solar complementary lighting power supply system has been widely applied. At present, the 559-inch wind-solar complementary new energy street lamp installed on the road surface of Fulong Road and Cidong Avenue in Cidong Industrial Park has saved more than 600,000 kWh of electricity per year.

It is understood that the wind-light complementary lighting power supply new energy system is the national "863" key support project, the basic principle is to convert solar energy and wind energy into electrical energy, and play a good complementarity between the two. Every day, the wind turbines and solar panels on the new complementary lights convert wind and light energy into electrical energy and store them in the battery buried under the pole. At night, the battery automatically supplies power to light the streetlights, and the daylight is automatically extinguished during the day. Even on days when there is no wind and no sunlight, the battery can be powered continuously for 10 nights.

Compared with ordinary street lamps, the advantages of such lamps are obvious. According to the comprehensive comparison analysis table of wind-solar complementary lighting and ordinary electric lighting provided by the relevant departments, the street lamps with complementary scenery and power supply have no need for transmission lines and no need to excavate the road surface. The buried pipe project, which does not consume electricity, is prominent in the urban lighting construction such as urban road construction and landscaping. At present, the installation cost of this new street lamp is 153,000 yuan per ton, the cost of electricity is zero, and the average daily cost is about 2.1 yuan in 20 years, which is lower than the cost of ordinary street lamps. Moreover, this does not count the cost of power generation, the loss in the transmission process, the land occupied by the transmission equipment, etc., and the wind-light complementary new energy street lamp can be continuously charged, the battery can be replaced in four years, and the life is longer than that of the pure solar street lamp. Doubled.

According to the introduction of energy experts, due to the long sunshine time in the region, the average annual illumination time is more than 200 days. In addition, the Cixi coastal area has an average wind speed of 3 meters per second, and the wind resources are abundant. Vigorously promoting wind-solar complementary lighting technology will greatly reduce lighting power consumption and alleviate the contradiction between power supply and demand.


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