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In 2014, China proposed medium and long-term low carbon development goals in China-U.S. Joint Statement on Climate Change that the emission of carbon dioxide would reach its peak and the proportion of non-fossil energy accounted for the primary energy consumption would increase to 20% in 2030. In order to achieve these goals, the unified carbon emission trading system should be put into effect by 2017, the implementation of the unified carbon emission trading system depends on the effectiveness of the current carbon trading market in China. On the basis of the effective market theory and fair game model, the unit root test and the run test are developed to analyze the carbon emission market of four representative cities in China. The results show that (1) the carbon trading market in China has only achieved weak efficiency, while the semi strong efficiency and the strong efficiency have not been reached; (2) with the expansion of the market scale, the increase of trading volume, the carbon trading market would converge from the state of inefficiency to weak form efficiency gradually, and the carbon trading market in China shows signs of restoring market efficiency.

Based on an analysis of 9 solar cell enterprises from 2008 to 2014, this paper examined the Chinese solar cell industry's market structure and performance. The empirical results reveal that China's photovoltaic (PV) cell market supports the X-efficiency structure hypothesis and that enterprises with higher levels of production technology and management earn higher profits. However, market concentration, market share, and scale efficiency are not significantly related to corporate performance. In addition, reasonable and effective control of the debt-to-assets ratio of such enterprises is conducive to revenue improvement. Based on these conclusions, this paper offers suggestions on how to improve the performance of the PV cell industry from the perspectives of enterprise and government. The research results have substantial significance for the promotion of enterprise reform and the optimization of industrial resource allocation.

Emissions trading scheme (ETS) is one of the effective measures to realize energy conservation and emission reduction. In order to set up a nationwide carbon emissions trading mechanism, seven ETS pilots have been launched in China. Firstly, based on empirical investigation and research of seven pilots, this paper analyzed the market efficiency of ETS pilots from four aspects: carbon price, trading volume, market liquidity, and information transparency. The result showed that the market efficiency of ETS pilots is not satisfactory in spite of the fact that system designs of ETS have achieved preliminary result. Then, the reason for low market efficiency of ETS pilots was discussed from some factors such as institutional arrangements, market participants, the supply and demand, etc. Finally, this paper puts forward some policy suggestions to improve the market efficiency of China׳s carbon trading market.

China׳s wind power industry experienced rapid growth before 2009. However, the growing rate slowed down and the problem of wind curtailment was serious recent years. This paper focuses on the analysis of the turning point of China׳s wind power industry combing with life circle theory. With a panoramic view of status quo, based on the resource endowment, capacity development and future trends, we draw the following conclusions: (1) China׳s potential wind power reserves are still rich and the development of wind power industry will sustain growth for some period in the future. (2) As for market structure aspect, oligopolistic characteristic of China׳s wind power market is still obvious. The market share of China׳s wind power generation is not very high enough in the total generation market. (3) Turning point of China׳s wind power industry has not come yet and the slowing down of development speed at present is mainly caused by inappropriate government intervention. It is estimated the turning point of wind power industry will come around 2020.

Influenced by the international environment, price of photovoltaic (PV) products has continued to drop in recent years. The production enthusiasm of manufacturers was affected, and the market was in depression at once. To realize the expansion of domestic market, China has implemented many incentives since early 2009. This paper reviews the present status and development trend of the Chinese PV industry. It focuses on the turning point problem and draws the conclusions: First, there are still some obstacles to overcome, the key ones are the too low PV product price, industry overcapacity, unbalanced industrial demand and supply, cutbacks in foreign PV market and uncompetitive technologies. Second, the turning point of PV industry in China will come in the future if the problems in PV industry can be solved and the large-scale of the industry can be achieved. Third, the Chinese government is gradually clearing up the obstacles of the development of PV industry, and the turning point is on the way, maybe not later than 2020. At the end of the paper, suggestions are offered as references for the government.

At present, countries around the world set off a round of upsurge of exploitation and utilization of geothermal energy. As one of renewable energy resources, geothermal energy has the advantages of great resource potential, low carbon emissions, widespread distribution, easy development and so on. China׳s geothermal resources are enormous and have huge potential for exploitation. However, due to the lack of reasonable industry planning and policies support, and lag of technologies, the industrial development speed and scale are far behind the wind, solar and biomass energy. The 12th Five-Year Plan for National Economic and Social Development of the People׳s Republic of China explicitly issues that in future China will vigorously develop the geothermal energy and provide more policy support for geothermal industry development from medium to longer term. This paper describes China׳s geothermal resource potential and status quo of geothermal industry, and analyzes the obstacles of the industry development. Then, it accordingly puts forward the development pattern of China׳s geothermal industry and gives out related countermeasures. At last, it outlines the prospects in this field.

This paper focuses on the relationship between bioenergy industry and energy security. The situation of fuel ethanol, biodiesel, biogas and biomass power industry of China in recent years has been introduced comprehensively. With a quick look at the existing bioenergy industrial development policies, combined with China's energy security situation, we drew the following conclusions: (1) the bioenergy industry is an effective way to achieve China's energy security; (2) as for energy substitution from cost aspect, China has already had the ability to make bioenergy substitute for fossil fuels; (3) from technical aspect, however, China's bioenergy technologies are not mature, this means that in a very long period of time, biomass and fossil energy will jointly develop in a mutually beneficial way.