Ordinary solar pv lighting system problems existing in the application in the city

Ordinary solar pv lighting system application problems in the city: solar cells into the practical stage, soon will be applied in the field of lighting. In our country, in the early 70 s, solar cells have been used on the beacon light. Then, in order to solve without power supply

ordinary solar pv lighting system problems existing in the application in the city: solar cells into the practical phase, soon will be applied in the field of lighting. In our country, in the early 70 s, solar cells have been used on the beacon light. Then, in order to solve the problem of no power supply area lighting, solar energy lamp is more and more. Until today, in our country, Tibet, xinjiang, qinghai, Inner Mongolia, such as places where no power supply solar photovoltaic power generation technology has been make great contribution to the local lighting. Later, in 2000 the world solar cell production capacity of 3000 megawatts of new more encouraging progress in our country, China has become the world's largest solar cell production base. At the same time, solar lighting technology in the urban and rural road lighting. A combination of a large number of solar cells and LED traffic lights are widely used; A combination of solar cells and leds has also appeared in a variety of lighting lamps and lanterns. In addition to the above introduction of functional lighting, there are a lot of solar decorative landscape lighting in the city. Particularly want to mention here is a typical success in this field - — Solar energy lawn lamp, solar lawn lamp solar battery and LED application field in our country is of an important branch of cannot be ignored. Number 2007 exports has more than 200 million lamps, solar battery consumption quantity of 30 mw or so, the consumption of the LED in the 2 - 300 million, the number of solar cells and LED semiconductor lighting system of solar lighting and LED lighting is the number of production in our country is the biggest of all. 1. Small 2 v battery consumption will also be more than 200 million only, this is absolutely a breathtaking statistics. But in solar photovoltaic power generation technology by leaps and bounds of encouraging situation, has been optimistic about the solar street lamps in the promotion and application of the urban and rural quickly, especially in the rural modernization, solar photovoltaic power generation technology without grid has received considerable attention in the rural road lighting, LED street lamp, and a success. But it also exposed the solar street light exist some disadvantages, especially in city road on the application of the main road, the reliability of the intensity of illumination and under the condition of continuous rainy day seem to be disappointing, what reason is this?