At the 2015 International Solar Heating and Cooling Technology Summit held recently, industry insiders said that China's solar thermal and thermal possession ranks first in the world, and solar energy low-carbon environmental protection has also been deeply rooted in the hearts of the people, but affected by various factors, the market has increased in recent years. The speed continues to slow down.
Zheng Ruicheng, the thermal utilization committee of the China Renewable Energy Society, believes that an important reason for the slowdown in the growth of the solar thermal market in recent years is that the industry has not yet developed a market-oriented development capability. To break through the current predicament, it is necessary to study the obstacles to the development of marketization. Solve it. "The reason why China's solar thermal energy can develop rapidly in the past few years is due to the many policies introduced by the state in the field of renewable energy, especially the mandatory installation of solar hot water, and the renewable energy introduced by the ministries such as the Ministry of Finance and the Ministry of Housing and Urban-Rural Development. Energy building applications demonstration cities and demonstration counties and other projects." Zheng Ruicheng said.
Hu Runqing, an associate researcher at the Energy Research Institute of the National Development and Reform Commission, believes that there have been three main reasons for the dilemma of light and heat development. From the external environment, with the decline of new construction area and the end of some policy encouragement projects, the market demand for solar thermal energy has shrunk; from a technical point of view, some domestic solar thermal companies only focus on temperature when developing products. This point, while ignoring pressure, flow, flow rate and other elements that affect the user's experience; In addition, the lack of new technological breakthroughs and business models to be improved is also the reason for the lack of sufficient momentum in the development of China's solar thermal industry.
At present, light and heat companies have begun to try to break through. Li Jun, president of the Four Seasons Muge Group, told reporters that the industry's growth rate has a certain periodicity. According to the “13th Five-Year Plan†energy preparation plan, the number of solar collectors in China will be realized from 400 million square meters in the next five years. The growth of 800 million square meters is a challenge for light and heat enterprises, but more opportunities. "For the light and heat enterprises, the technology should be solid and the market should be done in the future; it is necessary to actively assist local governments to build demonstration projects and to take the lead; to strive for the industry to become bigger and stronger." Li Jun said that China's solar heat It is no longer possible to stay at the level of water heater products, from rural to urban, from civilian to industrial and commercial applications, from single energy to composite energy, from selling products to selling projects. The development of light and heat is not only technological innovation, but also innovative ideas.
Taking Hebei University of Economics and Business as an example, Hu Runqing introduced the solar energy cross-season heat storage and heating demonstration project. It is understood that the total heat storage capacity of the project is 20,000 tons, which can meet the winter heating of 30,000 teachers and students and the domestic hot water needs throughout the year. The system operation life is calculated for 15 years, and the heat loss of the non-heating season is deducted. The reduction of 27,000 tons of carbon dioxide emissions, the ecological contribution is very obvious.
Building energy conservation has become one of the important goals of energy saving and emission reduction in China. Xu Wei, dean of the Institute of Building Environment and Energy Conservation of China Academy of Building Technology, believes that near-zero energy buildings have become a new international development trend, and renewable energy building integration It is the inevitable development direction. According to statistics, the energy consumption in the total energy consumption of buildings is about 15 times that of building energy consumption, and the heating energy consumption accounts for almost 35% of the total energy consumption. This also provides a commercialization and scale for solar heating in China. Expansion capacity.
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