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How much is the contribution of nuclear power to carbon emission reduction? Is nuclear power a clean energy for the economy? “Nuclear power plants require huge investment and operation costs, and the current public concern is the investment cost of nuclear power plants. The huge investment in nuclear waste treatment costs and closed reactor costs are not in the public eye.†This is the senior vice president of European Space Energy Group. Dr. Xu Feng, an expert on nuclear safety and former space agency of the United States, questioned the economics of nuclear power at the China Energy Environment Summit Forum hosted by the University of International Business and Economics at the High-Energy and Energy Conservation Summit and the media roundtable.
Xu Feng believes that the contribution of nuclear power as a clean energy to carbon emission reduction is very limited: "To replace the current carbon emissions caused by energy consumption in the United States, the United States needs to build more than 400 nuclear reactors, costing 1.2 trillion to 2 trillion. From a global perspective, more than 8,000 reactors are needed, which will cost at least $24 trillion and take more than 30 years."
After Japan suffered a nuclear disaster caused by the earthquake and tsunami, Prime Minister Naoto Kan recently publicly stated that he would adjust Japan’s nuclear-focused national energy plan and long-term development strategy. Japan had been betting on other clean energy fields such as solar energy and wind energy before the nuclear disaster. According to reports, the Japan Aerospace Agency (JAXA) has launched a space solar energy utilization system plan in early 2010. The system can generate at least 1 billion watts of electricity, enough to power 300,000 homes in Tokyo, which will cost 2 trillion yen (about 21 billion US dollars).
The "space solar" technology is still relatively unfamiliar to many people, but it has already developed in the United States, Japan and Russia. Researcher Li Ming, deputy dean of the China Academy of Space Technology, said that China's space technology is currently only used to provide information services, while "space solar" technology can use space technology to provide energy services to humans. The solar photovoltaic device is sent to the space orbit by a rocket or the like, which receives solar energy in the orbit, converts the energy into microwave or laser, and then transmits it to the ground receiving terminal through the wireless method, and outputs the terminal to the power grid in the future. This technology in the field will have a lot of room for expansion. At present, universities and institutions such as Sichuan University and China Academy of Space Technology have made certain progress in the field of wireless transmission.
"The wireless transmission capacity of space solar energy will play a huge role in the emergency supply of electricity in the grid. At present, China's space solar power plant technology has not yet been included in the development plan of relevant departments." Li Ming said, "space solar energy can take microwave Or laser two types of technology. At present, Europe and the United States mainly rely on microwave technology research and development, and Japan is also developing laser technology." Li Ming believes that the development of space solar power plant technology may not only provide an effective way for the development of clean energy, but also It may trigger a new technological revolution, especially the take-off of the human low-space economy led by aerospace technology and industry.
Dr. Xu Feng is also an active guide for space solar technology. Previously, he served as the head of the National Aeronautics and Space Administration (NASA) risk management program, and made a key contribution to the 2007 US Department of Defense Space Defense Agency's research and evaluation of space solar projects. He made a scientific comparison of space solar energy and nuclear energy through quantitative and qualitative methods.
“Comprehensive and systematic assessment of sustainability, environmental hazards, safety, economics, technical difficulties, commercial operational effects, potential risks of misuse and the benefits of long-term human development, space solar energy versus nuclear power Xu Feng also further stressed the hidden dangers of nuclear power. Every major nuclear disaster is likely caused by different problems and complicated reasons that people have not anticipated, and the uncontrollability and nuclear accident of nuclear energy utilization. The devastating destructive power has further increased the complexity and risks of nuclear energy utilization.
Dr. He Xueyan from the China Development Strategy Research Association also agreed with Xu Feng’s point of view. "The development of nuclear power should be re-adjusted. From focusing on the development of nuclear energy to wind energy, to tidal energy, and finally to space solar energy, it should be the order and direction of China's current clean energy research." He Xueyan said.
At the end of the meeting, Professor Lin Zhiqin, Secretary-General of China Energy Environment Summit, introduced the plan of the “China Energy Environment Summit High-tech Energy and Energy Conservation and Environmental Protection Summit†to be held in August this year. “Space Solar Technology†will become an important part of this summit. issue.
The summit also intends to invite people to board the moon for the first time - Baz Orr County, Academician of the China Academy of Space Technology, Academician Gui Guirong, "Two Bombs and One Star" Yuan Xun Wang Xiji, China National Energy Environment, Science and Technology, National Defense Related ministries, related universities, University of International Business and Economics, China Academy of Space Technology, Chinese Academy of Sciences, Chinese Academy of Social Sciences, Tsinghua University, International Clean Energy Association, National Science Foundation, US Department of Energy National Research Center, New York University, European Space Energy The Group and the NASA Outstanding Science and Technology Achievement Award honorary winners and other top experts and scholars at home and abroad discussed China's high-tech energy and energy conservation and environmental protection issues.
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