Build on the progress of
Safety, energy conservation, environmental, economic, itself several advantages. Especially with the auxiliary heating function of solar water heaters, solar-based it, supplemented by electric energy use, make use of solar water heaters can be 24x7x365.
Solar water heater, the solar energy into heat energy, heating the water from low temperature to high temperature, to meet people in life, the production of hot water use. By collector solar water heater, storage tanks and associated annexes, to convert solar energy into heat energy mainly depend on tube. Affected by sunlight collector surface temperature is high, the back sun tube surface temperature is low, and pipe the water temperature response arises, using the principle of water floating in cold water sink, so that water will reach the required micro-circulation of hot water.
Safety, energy conservation, environmental, economic, solar water heater itself several advantages. Especially with the auxiliary heating function of solar water heaters, solar-based it, supplemented by electric energy use, make use of solar water heaters can be 24x7x365.
Results of application of solar water heater is solar energy a major industry in its environmental protection, safety, energy, health, etc., quickly won the favor of consumers, China, is an energy-consuming countries, accounted for about a year to the national energy consumption total consumption of 1 / 3, while the country\\ s total energy consumption, 1 / 3 from the building energy consumption. \"To the roof to energy\", solar water heater is to absorb the sun\\ s radiant heat, heat cold water available to people in their lives, energy-saving equipment used in production.
Solar water heater in accordance with the annual average temperature 15.7 ?, the annual sunshine time 2014 hours, the total annual global solar radiation is 111.59 kcal / square meter, if the collector area of ??2 square meters, the annual absorption of solar radiation energy of 9.37 × 106 kJ, according to the calculation of water temperature 35 ? (base temperature 10 ?), throughout the year to provide domestic hot water (45 ?) 53.5 tons per person per bath with hot water about 50 kg, then the full year wash 1070 times, 2.93 times the average daily wash.
China\\ s annual production capacity of solar water heaters in Europe two times, four times in North America, has become the world\\ s largest producer and largest solar water heater solar water heater market, and is still at an annual rate of 20% -30% increase. But the Chinese manufacturer of solar water heaters more than 5,000, in addition to Sang Le, Huang Ming, Qinghua Sun, Hua Yang, Sun Yu, Li Norit in 10 national brands for quality, excellent service, high-profile outside the market, industry, there are a lot of brand-name companies are numerous and unorganized, this situation is not conducive to long-term development of the industry, which requires government departments to regulate and strengthen regulatory guidance. Although the market situation is not satisfactory, but the market outlook remains bullish. With the national economy and people\\ s living standard continues to improve, residents of the home indoor growing demand for hot water, solar water heater market, China has great potential,
But now, in our family the use of solar water heaters in the South is stronger than the northern, rural and strong in the city, further restricting the promotion of solar water heaters, there are many factors.
First, since the requirements for the installation of solar water heater is relatively high, city high-rise buildings are capable of supporting the installation of a solar energy business \"into the city,\" the key factor. As the developers did not take into account the construction of solar water heater installation, use, making the top floor residents use solar water heaters are extremely limited. Cities involved in the investigation of solar water heater users, only 7.4% of high-rise residents. Most of the remaining 10 floors below the lower floor or cottage residents. There are some residential property to develop \"local policies\", determined not to allow residents to install solar water heaters.
In addition, the government paid insufficient attention. At present, encourage and promote solar water heaters, including various types of energy facilities, including a number of policies and regulations, but more by the ministries or local governments, systematic, mandatory poor. Incentives to implement policy, not many. Such as the Beijing Municipal Development and Reform Commission issued the subsidy policy, new and existing buildings to add various types of solar water heater subsidy per square meter of collector 200, the intensity is indeed very high. However, the survey shows that consumers do not use solar energy to understand this policy and only 6.92%, knowing that accounted for 19.23%, do not know and do not know accounted for 73.84%.
Interested because they do not understand is not an important reason for interest is not directly see the benefits. In fact, 92.43% of people want the money direct state subsidies to the buyers, 83.91% of people said that if given the appropriate state subsidies, are willing to change their own water heater solar water heater. Without subsidies, it is willing to replace the solar water heater and only 25.77%. It seems, that subsidy is not enough light, but also the people by way of subsidies approved.
How to break into the city\\ s solar energy business dilemma? Cheng has become nowadays the problem to be solved.
Right now, the giants have announced a number of solar water heater to enter the urban market, and have to pay close attention to technological innovation and industrial upgrading.
Solar water heater industry is currently in a dilemma situation, the brand of solar energy companies in order to take the path of urban development, can take a step back, and building integrated solar products to combine the business of solar energy products and technology, real estate for construction and installation , the two sides to jointly as the city\\ s low-carbon, green contribution to the development, the parties also will not spend too much and a big headache. It is understood that, with local governments to force installation of the promulgation and implementation of policies, some cities have started from the user-installed, go to \"implant\" estate planning period.
If the solar water heater can break through the storm into the city to proceed smoothly, then the solar energy business through the industry is likely to be re-shuffle, a new and stable pattern of industry change. To enter the urban market, even if it is solar water heater products and building a simple integration, without a support of solar energy technology and power companies are difficult to develop. Because the technical requirements of city building products is high, small businesses can not obtain the advantages of the product; In addition, large capital investment, market development is difficult, the market has not scale, which may be preventing small and medium enterprises into the city-name element.
An industry veteran analysts believe that competition for development and development needs of survival of the fittest, solar water heater industry status quo is an inevitable stage in the development process, companies have to keep the scientific and technological innovation, the core technology in order to survive the winter, to survive. With the development of building integrated solar energy and the formation of the competitive situation of rural markets, the pattern of solar water heater industry increasingly clear. In the solar water heater, solar companies will divide into two categories: one is to survive the fierce competition by small and medium enterprises in the rural market; the other is expanding the field of building integrated solar energy, go the city route brands.