Changjian Wang

Decomposition of energy-related carbon emissions in Xinjiang and relative mitigation policy recommendations

Regional carbon emissions research is necessary and helpful for China in realizing reduction targets. The LMDI I (Logarithmic Mean Divisia Index I) technique based on an extended Kaya identity was conducted to uncover the main five driving forces for energy-related carbon emissions in Xinjiang, an important energy base in China. Decomposition results show that the affluence effect and the population effect are the two most important contributors to increased carbon emissions. The energy intensity effect had a positive influence on carbon emissions during the pre-reform period, and then became the dominant factor in curbing carbon emissions after 1978. The renewable energy penetration effect and the emission coefficient effect showed important negative but relatively minor effects on carbon emissions. Based on the local realities, a comprehensive suite of mitigation policies are raised by considering all of these influencing factors. Mitigation policies will need to significantly reduce energy intensity and pay more attention to the regional economic development path. Fossil fuel substitution should be considered seriously. Renewable energy should be increased in the energy mix. All of these policy recommendations, if implemented by the central and local government, should make great contributions to energy saving and emission reduction in Xinjiang.

Wake-up call for China to re-evaluate its shale-gas ambition.

Changjian Wang,*,†,‡ Fei Wang,*,†,‡ Lianrong Li, and Xinlin Zhang†,‡ †State Key Laboratory of Desert and Oasis Ecology, Western Research Center for Energy and Eco-Environmental Policy, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, P.R. China ‡University of Chinese Academy of Sciences, Beijing 100049, P.R. China China Satellite Launch and Tracking Control Genera, Beijing, 100120 P.R. China

Is Vietnam Ready for Nuclear Power

V demand on power supply is increasing rapidly along with economic growth. It is a matter of urgency for Vietnam to find alternative energy source other than fossil fuel in order to minimize the influence on local climate. Currently the world’s largest nuclear power market exists in emerging economies and developing countries as those countries are in great need of relatively cheap energy to drive its economic growth. But nuclear power, neither cheap nor safe, is putting those countries in a dilemma. As the hot spot of the nuclear power market shifted from “advanced technology” to “economic affordability”, how to find a comprehensive nuclear power solution for developing countries with specific requirements poses a serious question to the international community. Demand on power supply grows by 14% per year and the growth is expected to reach 15% in Vietnam until 2015. Vietnam relies on hydro power, which accounts for 36.04% of national power supply in 2009. Short of other energy resources, it will be very difficult for Vietnam to meet the country’s power demand in the future only with hydro power and power converted from fossil fuels (such as oil, coal and natural gas). Nuclear power supply, an efficient option that addresses power shortage without emitting greenhouse gases, is still a powerful attraction to developing countries represented by Vietnam. Vietnam announced its ambitious nuclear power program that is scheduled to grow from one reactor in 2020 to 10 reactors by 2030 in which nuclear contribution to the national grid will be 1.5% in 2020, 8% in 2030, and 20−25% by 2050. Vietnam’s first nuclear power plant, located at Phuoc Dinh, is supplied by Atom Story Export from Russia. Its second, at Vinh Hai, is supplied by JAPC from Japan. As a developing country, the only thing Vietnam could do is to make nuclear power an integral part of the national grid and at the same time ensure its safety and security. Russia and Japan promised to provide aid package to Vietnam in order to meet Vietnam’s requirements on funds, technology, nuclear fuel, power plant construction and operation, etc., as Vietnam does not have the basic elements to develop nuclear power on its own. Developing countries as Vietnam must put nuclear safety and security on the first place and conduct researches on nuclear accidents in history, for example, Chernobyl, Fukushima, etc., the influence of natural disasters on nuclear power plants prior to developing nuclear energy. To keep a nuclear power plant running smoothly and safely, it is also necessary to build a team of nuclear experts, engineers, professionals, and operators. It takes years or decades for a country to master the essence of nuclear science and technology, depending on a country’s existing infrastructure. Since nuclear professionals are scarce in developing countries, Vietnam should add more nuclear engineering courses in colleges and universities to enlarge the scope of basic nuclear education and professional training. Government should invest more funds to support domestic training institutions and conduct cooperation programs with foreign counterparts to develop its indigenous nuclear professionals. The location of nuclear power plant is very important. According to local meteorological experts, the nuclear power plant in Ninh Thuan province is under the threat of tsunami. To minimize the influence of tsunami, the government should build a tsunami and earthquake warning center and establish a tsunami forecast system. Even if the nuclear power program is kicked off with sufficient funds and technologies, any delay in the phase of engineering construction will bring about disastrous and unimaginable consequences to a developing country like Vietnam. In the case of France’s EPR project, EDF announced a revised cost estimate of EUR 6 billion caused by delay, set against cost estimate of EUR 5 billion in 2010. A lesson learned from the Fukushima experience shows the way the Government and Nuclear Safety Agency supervise and regulate the management and operation of a nuclear power plant is of great importance to its safety and security. We think that it is difficult to establish a perfect nuclear management system with high safety standards in such a short period of time. A former director of the Dalat Nuclear Research Institute emphasized a bad safety culture is prevailing in every field of the country, as is shown by frequent traffic accidents in

Reshaping China's nuclear energy policy.

Reshaping China’s Nuclear Energy Policy Qiang Wang,* Xi Chen, Degang Yang, Changjian Wang, Fuqiang Xia, and Xinlin Zhang State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumchi, 830011, P.R. China, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumchi, 830011, P.R. China, Graduate University of the Chinese Academy of Sciences, Beijing, P.R. China, 10049

Analysis of influence mechanism of energy-related carbon emissions in Guangdong: evidence from regional China based on the input-output and structural decomposition analysis

It is important to analyze the influence mechanism of energy-related carbon emissions from a regional perspective to effectively achieve reductions in energy consumption and carbon emissions in China. Based on the “energy-economy-carbon emissions” hybrid input-output analysis framework, this study conducted structural decomposition analysis (SDA) on carbon emissions influencing factors in Guangdong Province. Systems-based examination of direct and indirect drivers for regional emission is presented. (1) Direct effects analysis of influencing factors indicated that the main driving factors of increasing carbon emissions were economic and population growth. Carbon emission intensity was the main contributing factor restraining carbon emissions growth. (2) Indirect effects analysis of influencing factors showed that international and interprovincial trades significantly affected the total carbon emissions. (3) Analysis of the effects of different final demands on the carbon emissions of industrial sector indicated that the increase in carbon emission arising from international and interprovincial trades is mainly concentrated in energy- and carbon-intensive industries. (4) Guangdong had to compromise a certain amount of carbon emissions during the development of its export-oriented economy because of industry transfer arising from the economic globalization, thereby pointing to the existence of the “carbon leakage” problem. At the same time, interprovincial export and import resulted in Guangdong transferring a part of its carbon emissions to other provinces, thereby leading to the occurrence of “carbon transfer.”