Solar energy development in China

Our history dates back to 1958, solar energy, Tianjin University has 12.6 square meters of solar bathroom. By 1973 the world forklift energy crisis, the search for renewable forklift truck energy, China in the late 70s of last century, increased research and development and production of solar collectors. Some units before and after 1979, head of R & D all-glass vacuum tube collector. Tsinghua University, the physical background of the use of power vacuum, stuck with it. Cattle is an elongated structure, but there is a layer including glass selectively absorbing coating. Tsinghua University patent is Al - N / Al solar selective absorbing coating, in the world by creating a single aluminum cathode magnetron sputtering lower infrared low emissivity of gate opener aluminum - aluminum nitride ceramic film to absorb sunlight and dilute the anti-reflective aluminum film in three parts. Vacuum tube collector can be used in the cold weather, use of low solar radiation, it is suitable for a variety of climate. This is a selective absorbing coating switches structure, each absorbing layer is only 10 to 30 nm, low emissivity layer is 150 nm.
Solar energy heat utilization industry. In the solar selective absorbing coating breakthrough core technology, by combining production and research, media production and better cost performance.
2001 to 2006, the rapid development of solar energy heat utilization industry. 2006 sales of nearly 300 million to provide wind turbine generator employment opportunities for more than 60 million. China solar water heater installed capacity of 2005 77% of the world. Vacuum-type accounts for about 90% of world production, annual production of about 3.3 borosilicate glass, 70% of the world, Getter about 95% of the world, was about 190 million vacuum tubes, was about 090 million tubes use. A large number of b2b tubes are manufactured in China are Chinese-getter. These three aspects we have to go in front. Supporting the formation of the industrial chain. 30 million tons of which 3.3 glass vacuum tubes for 28 million tons. 1000 vacuum tube coating production lines and supporting equipment, production capacity is 200 million, the assembly of about 20 million square meters of solar water heaters, as well as ancillary equipment. To do some of the technological transformation of key enterprises, enhance the enterprise level of equipment and conditions.
Tensions in the global energy situation, global warming a serious threat to economic development and health of people living today, countries around the world are looking for new alternative energy strategy, in order to achieve sustainable development and the development in the future to obtain a superior position. Solar energy for its clean, steady flow, security and other significant advantages, as focus of attention. In the solar forklift industry, solar thermal water heater is undoubtedly the most mature conversion technology, and its industrialization process are more photovoltaic cells, solar power and other industries one step ahead. But the market has yet to be standardized, consumers have yet to be nurtured, technologies have yet to improve, so for large enterprises, there is room for growth.
China's solar thermal technology research and development began in the late 20th century, 70, with its emphasis placed on simple, inexpensive low-temperature heat utilization of appropriate technology, such as solar greenhouse, solar, passive solar house, solar water heater, and solar dryers . Such technologies used widely in rural areas, to alleviate the energy shortage in rural areas, improving the rural ecological environment and farmers played a positive role in life, and received results. 80 20th century, solar water heaters included in the national "Plan" and the "Plan" scientific and technological projects. The main R & D project is the efficient flat panel solar collector and all-glass vacuum tube. In the 90's all-glass vacuum tube of the scientific and technological achievements into productive forces through the trial - to design and supporting the formation of tube production line is the most outstanding scientific and technological achievements.
In 2007, China solar water heater garden tool production growth rate of about 30%, annual production of 23.4 million square meters (16380MWth), the total reserves of about 108 million square meters (75600MWth) (solar water heater life of 10-year period, 1997 years ago to maintain amount set aside). In 2007, the solar water heater market sales of about 32 billion yuan, output value of enterprises with more than one hundred million yuan, more than 20; 2007, solar water heater is about 28% growth in exports, 6,500 million dollars, exports to Europe, America, Africa, Southeast Asia more than 50 countries and regions. China's annual production capacity of solar water heater 2 times in Europe, North America 4 times, has become the world's largest producer and largest solar water heater solar water heater market, and is still 20% -30% annual rate of increase. But the Chinese manufacturer of solar water heaters more than 5,000, in addition to Lok Sang, Wong Ming, Qinghua Sun, Hua Yang, Sun Yu, Li Norit in 10 national brands for quality, excellent service and high market visibility, the industry, there are many diverse and caught up in brand-name companies, this situation is not conducive to long-term development of the industry, which requires government departments to regulate and strengthen regulatory guidance. Despite the market situation is not satisfactory, but the market outlook remains good. With the national economy and improve people's living standards, residents on the family room growing demand for hot water, solar water heater market has great potential in China.