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Solar energy: the most promising renewable energy sources

China¡¯s land surface solar radiation each year equivalent to 4.9 trillion tons of standard coal, the country 2 / 3 of the land area for more than 2200 hours in the sunshine. If all of these solar energy for electricity generation, about equivalent to tens of thousands of the total generating capacity of the Three Gorges Project. Abundant solar energy resources of the Chinese nation¡¯s survival and sustainable reproduction of a most valuable asset.

Experts pointed out that as China¡¯s primary energy reserves of the world¡¯s total reserves, only about 1 / 10 of China¡¯s future must be carefully controlled, coal, nuclear power and natural gas development, coal development is not only constrained by the coal resources, but also by the transport and water conditions, development of nuclear power also subject to nuclear materials and security constraints, the handling of nuclear waste problem is far worse, the cost is also very high. Therefore, vigorously develop renewable sources of energy has become our priority.

Experts predict that in the current and the next 30 to 50 years, China has practical application ability of wind turbines and renewable resources, mainly: small hydropower, wind power, biomass and solar energy. It is calculated that China¡¯s small hydropower capacity of the theory can be developed 115 MW, 1,000 MW of wind power, biomass of 100 megawatts, while there are 1.09 million megawatts of solar power, even if only 1% of the development of solar energy, its installed capacity Capacity will be able to more than 3600 MW of renewable energy higher than the other two orders of magnitude.

When the electric power, coal, oil and other non-renewable energy sources frequently in an emergency, energy is increasingly becoming a bottleneck restricting the international socio-economic development, when, more and more countries have begun to implement "Project Sunshine", developing solar energy resources, to seek a new driving force for economic development. Solar energy as a renewable new energy, an increasing cause for concern. China is rich in solar energy resources, solar energy use of a bright future. At present, China has the world¡¯s solar water heater wind generator  production and use of the largest countries and an important producer of solar photovoltaic cells. More mature solar products in China there are two: solar photovoltaic systems and solar water heating systems.

China PV industry, starting in the 20th century, 70 years, after 30 years of effort, has ushered in a new stage of rapid development. In the "Bright Project" pilot projects and "send electricity to the township" projects of national projects and the powerful driving force in the world PV market, China¡¯s rapid development of photovoltaic power generation industry. The end of 2007, the country¡¯s total installed capacity of PV systems reach 10 million kilowatts in 2008 solar cell production reached 200 million kilowatts.

After years of development, China solar water heater industry has formed a relatively complete industrial system. 2008 China¡¯s solar water heater industry, steady and rapid development. Among them, output up to 430 billion yuan, exports amounted to 100 million U.S. dollars.

Since the second half of 2008, the financial crisis threatening to China, so that PV companies are seriously affected: Order reduction in polysilicon prices. This financial crisis is far-reaching, but its unique advantages of solar power to decide its trends, and can not change. The financial crisis, the industry is in the shuffling phase of the solar water heater industry is concerned, is not necessarily a bad thing, but to promote the rapid industrial upgrading has practical significance. In addition some of the central authorities to implement measures aimed at stimulating domestic demand and stimulate rural economic development and stimulate the development of SMEs, for solar energy heat utilization industry very helpful.

In the financial crisis situation, in March 2009 China promulgated the "Solar Roofs Plan", July 21, 2009 Ministry of Finance, Ministry of Science, the National Energy Board jointly announced the official launch of China¡¯s "Golden Sun" demonstration project. In 2009 the state has adopted the policy will boost the domestic solar power market development in China under the guidance of government strong policies, the photovoltaic industry is not only to allow domestic companies see the opportunity, and has attracted world¡¯s attention. 2009 solar water heaters "countryside" is a solar water heater industry, a major event, marking the solar water heater to be national accreditation, China¡¯s solar water heater industry has entered a new era.

Chinese Academy of Sciences party had formally approved the plan of action to start implementation of solar energy, which plans to around 2050 solar energy as an important energy source for the long-term goals, and identified in 2015 distributed use, in 2025 an alternative use, the scale of the use of three phases by 2035 target, solar energy industry in the China market prospect is broad.

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