Talking about the use of solar energy resources and the development of LED street lamp

Of most countries around the world are actively developing new energy and energy-saving technologies, such as wind energy, solar energy, mixed fuel, ethanol, hydrogen energy, wave energy power generation, energy, waste gas and underground. After the resignation of former president Jiang Zemin, also in the "China's energy issues," the article raised the hope that the national level to increase nuclear energy, wind energy, solar energy and other emerging areas of attention and investment.

1 of China's solar energy resources distribution

According to international electric power network to provide data show that from the point of view of the distribution of national annual total amount of solar radiation, Tibet, Qinghai, Xinjiang, southern Inner Mongolia, Shanxi, Shaanxi, Hebei, Shandong, northern Liaoning, Western Jilin, central and southwestern Yunnan, southeastern Guangdong, southeastern Fujian, Eastern Hainan Island and the West and the southwest of Taiwan province and other large areas of the large amount of solar radiation. In particular, the Qinghai Tibet plateau region, where the average altitude of more than 4000m, the atmosphere is thin and clean, good transparency, low latitude, long hours of sunshine. Known as the "sunshine city" in Lhasa, the average annual sunshine time is 3005.7h, relative sunshine is 68%, the total solar radiation is 816kJ/cm2 - A.

The status quo and analysis of solar energy resources 2 in Panzhihua City

According to the National Meteorological Administration authority statistics show that Panzhihua is the most abundant resources of the Sichuan heat, sunshine, annual sunshine time is about 2838h, frost free period of 300 days or more, the annual average temperature of 20.6 degrees, even if the winter is often sunny, is the development and utilization of solar energy in one of the best, second only to Lhasa.

The solar water heater 2.1 Panzhihua city has become the common choice of residents. A large number of solar water heaters are installed on the roofs of many residents in Panzhihua. In Panzhihua municipal government's unremitting efforts, now the proportion of households to install solar energy has reached 40%, is one of the best use of solar energy in the city.

However the use of solar energy has many problems. Light device of solar water heater is installed on the roof, not too beautiful; the lower floors, but also on the high-rise building near the formation of reflective, caused by light pollution; water pipeline exposure often Water Leakage; with the expansion of the city, high-rise buildings, but most developers are not allowed to install solar device on the top floor, many the family is still using gas water heater or electric water heater.

In fact, as long as proper planning, led by the planning and construction departments, unified layout installation or for monitoring, the use of solar water heaters, can not only ease the city gas and power supply pressure, and low carbon environmental protection. If possible, by the house as a unit, in some reasonable place to compare the scientific way of installing solar central control device, will be able to reserve in the battery solar energy into electricity, and then to provide the shunt device special corridor, corridor, residential roads and other public areas and indoor lighting etc. that will greatly reduce the power consumption of city life. A few years ago, the Panzhihua municipal government to consider using the split in the high-rise building of the way to enforce the use of solar energy, so the old house family, new house to install solar installations, but due to various reasons has not been implemented. In addition, it is also a solar cooker a good method of low-carbon life, the use of solar energy into electricity or directly into heat by electromagnetic or thermal heating to high temperature even, can achieve the purpose of cooking.

2.2 Panzhihua solar lighting facilities gradually emerged. Project case 1:, according to the Panzhihua Daily reported on July 2006: Panzhihua Industrial Park Road 2 street lighting project. This road is a City Road II, should use the semi cut-off luminaire. Due to the night to enter the park vehicles and pedestrians less, in the case of the minimum illumination and brightness, the entire line of street lamps required 294. In this section the general lighting and analysis of solar lighting economic benefit conclusions are as follows: the product itself, LED solar light is higher than ordinary lamps cost; first investment grade solar street is 715 thousand higher than the ordinary street lamp yuan, medium and low-grade solar street lamps and ordinary lights similar.

Operating cost was significantly higher than that of ordinary lamps, solar lamps, and electricity and labor will be more and more high. According to 10 years of total investment estimates (including daily maintenance and energy consumption) solar street lamps than ordinary street lights to save $3 million 566 thousand and 750. According to the Sichuan 2: project case worker's Daily reported in June 2009: Panzhihua City, Binjiang Avenue and solar street lamps installed at Bing Ren line has been put into use. This section of the same solar street lights have become the focus of public attention. Solar street lights do not need to consume a kilowatt hour in the grid, you can play a normal lighting. Solar panels on the street, solar energy can be converted into electricity stored in the night or rainy day, and then release the electricity for lighting.

Analysis of 3 LED solar light

Analysis of market situation 3.1 solar LED lamps. Compared with the international development of photovoltaic power generation, China lags behind the developed countries 10-15. China's photovoltaic industry is at an annual growth rate of 30%, the 2008 Olympic Games will be held in Beijing, the state of building a new socialist countryside for the next 5 years, hard energy decreased by 20%, the three to the solar energy industry provides unprecedented opportunities, and the state of development and utilization of renewable resources in such a preferential policy has been implemented,