In the 21st century, mankind will face major challenges, to realize the sustainable development of economic and social in the limited resources and environmental protection strict requirements under the double restriction of economic development has become a global hot issue. Energy problems will be more outstanding, not only the lack of performance in a routine to the original, more important is the development and utilization of fossil energy has brought the first column, such as environmental volunteers dye, greenhouse son should be related to the burning of fossil fuels. Q
the current environment, largely due to the development and utilization of energy, especially fossil can the original cause. Human, therefore, to solve the energy problem, realize sustainable development, can only rely on scientific and technological progress, development and utilization of renewable clean energy on a large scale. Solar energy with its unique advantages, the development and utilization will get long-term development in the 21st century, and will in the world energy structure transfer task, the late 21st century has become the dominant sources of energy.