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The following article was published in our article directory on September 29, 2010.
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More widespread application of solar energy technology

Article Category: Business Management

Author Name: xia zihui

In recent years, made great use of solar energy development, particularly in the provision of domestic hot water, heating and power generation, the data shows the present solar water heater manufacturers in China has more than 5,000. These applications demand the gift of nature is not entirely consistent: when the weather gets cold, the more people need warmth, when the provision of solar energy is often inadequate.

The application of solar refrigeration coincided with the solar energy supply is largely consistent: when the weather gets hot, solar radiation is stronger when the air conditioning usage increased, and when it is most beneficial use of solar energy air-conditioning time.

Solar to mass production, way out only air conditioning. Solar air-conditioning is the result of U.S. scientists and engineers, 3 years of hard tackling from the development, a world-leading technology. Solar air conditioning can be used in a large number of low-carbon buildings, and low cost three to five years to recover the additional investment, six or seven years to recover the full investment.

China's sustainable energy development plan clearly defined, sustainable energy in 2020, the proportion of total energy consumption is only 15% of solar energy development and utilization of line with China's industrial restructuring and development of circular economy, green economy, low carbon economy macro policies, so that the solar industry has great potential. "

Solar will become the main energy

Related statistics show that the total building energy consumption of China's total energy consumption accounted for 27.45%, building energy conservation is imminent. Currently building energy consumption in heating and air conditioning accounts for 65%, 15% of hot water, electrical 14%, cooking 6%.

"There is no doubt focus on building energy saving air-conditioning and hot water energy efficiency, building energy conservation concern, first of all should be concerned about cold air conditioning and water heaters, hot equipment, energy saving. Solar air conditioning applications in buildings is a good energy-saving methods. "State Department of Housing and Urban Policy Research Center, deputy Renqin Hong pointed out that" as a new product, solar air-conditioning if withstood the test of the market, its market prospects. "

From the perspective of scientific principles, solar photovoltaic technology to convert solar energy directly to electrical energy, is the most promising ways of utilization of solar energy will gradually become the pillar of green energy, energy from the added growth of alternative energy.

ZHANG Yao-ming of Chinese Academy of Engineering in accordance with the "mathematical formula" projection, 1 square meter of PV 66 kilograms of carbon dioxide emissions per year, photovoltaic electricity per 660 grams of carbon dioxide emissions (net of the manufacturing process consumes 70 grams), 1 square meter per year man-made forest absorption 0.649 kg of carbon dioxide. From the perspective of emissions, install 1 square meter is equivalent to planting 100 square meters of solar photovoltaic. 130 square meters of land built by the installation of three kilowatts of photovoltaic roof, the roof is equal to 3,000 square meters of forest, equivalent to six tennis courts, large.

China 2 / 3 of the region more than 2000 hours of sunshine each year, the land area of solar radiation each year equivalent to 2.4 trillion tons of standard coal, about the equivalent of tens of thousands of the total generating capacity of the Three Gorges Project. These for our use and development of solar energy has provided preconditions. Solar power by 2030 is expected to supply electricity in the world, more than 10% of renewable energy in total energy mix accounted for 30%; 2050 solar power will account for more than 50% to the end of this century will be the main energy solar .

China to become a solar power technology research and development

Today's world, who mastered the standards right, whoever mastered a certain extent, the technical and economic competitiveness initiative. China solar air-conditioning industries come to the forefront, but also hopes to become a de facto standard setters.

Energy conservation is imperative that only the next killer. China's solar water heaters and photovoltaic components production rank first in the world, but mass production of photovoltaic vicious competition has just started to fall into difficulties. We should learn from solar, wind power, solar power lessons, solar air-conditioning should be based on independent innovation, further resolve the collector, thermal storage and other technical problems, to develop solar thermal power, solar air-conditioning and other new technologies, and promote the healthy development of the solar energy industry. "ZHANG Yao-ming pointed out that China's technology development in solar energy, we should review our experience and avoid detours, not only do the country the world's largest solar energy applications, but also to become the world's solar power technology research and development.

Hope that in the development of solar technology to fully consider the actual situation. North-south variations in climate and environment in China, different requirements for air conditioning, heating requirements such as Harbin, on the high cooling requirements of high-Guangzhou, which requires from reality. And if this city in Beijing to find a large enough place to put solar concentrator panels is difficult. Therefore, the development of solar energy use must keep cool heads. "

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