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Summary Access to energy has increasingly been provided by the Chinese Government via new alternative energy sources known as renewables in recent years. Meanwhile, the development and use of environmentally friendly renewables gradually become the basic requirements for the sustainable development in the future society. The integration of blockchain technology with distributed photovoltaic (PV) energy may break the existing pattern where the production, transportation, distribution, and sales of energy are centralized. This paper first reviews the current overall situation of China's distributed PV and further analyzes the policy environment with respect to the development of distributed PV. On the basis of the analysis of the status quo, the paper then discusses the internalities (strengths and weaknesses) and the externalities (opportunities and threats) that have driven the development of China's distributed PV by illustrating the SWOT analysis. The data structure and characteristics of blockchain are analyzed to identify the application mode of blockchain technology in the distributed PV industry for the first time. Through our research, some conclusions and policy proposals are finally put forward to provide support to the formulation of related policy in the Chinese Government and industry association.

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Summary The rapid development of China's economy cannot be separated from the massive consumption of fossil fuel. However, potential risks such as the extreme shortage of fossil fuel and the resulting environmental problems are becoming more and more prominent. As a substitution for fossil fuel, renewable energy is playing an increasingly important role in the energy structure adjustment. As a special type of renewable energy, marine renewable energy has been paid much attention by China's government and scientific researchers because of its properties such as cleanness, environmental protection and large reserves. Under the background of energy structure adjustment and electricity market reform in China, the marine renewable energy power market has a bright future. Through querying an amount of literature and information, this paper makes a strategic analysis based on the understanding of the resource endowment, the current industrial status, and policy environment. Then, the PEST‐SWOT strategy analysis model was adopted to analyze the internalities (strengths and weaknesses) and the externalities (opportunities and threats) of the factors affecting the development of marine renewable energy power industry. Then, some countermeasures from the four angles of strategic positioning, institutional arrangement, environmental education, and technical support are proposed to address the weaknesses and threats. Through the research, some conclusions and policy proposals are finally put forward to promote the sustainable development of the industry.

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Summary Due to the gradual depletion of fossil energy and the climate change, many industrialized countries are pursuing a sustainable energy transition, however they choose different pathways. There are such issues on the process of energy transition as the high renewable energy cost and the increase of carbon emissions. In order to ensure the smooth process of energy transition, governments need to draw energy development experience from each other to jointly promote the global energy transition. At the beginning, the recent situations from both energy economy and policy are described in this article with respect to some typical industrialized countries (the G7 countries and China). And then to make comparative analysis more logical, a novel conceptual model ‐ Institution‐Economy‐Technology‐Behavior framework is adopted. Based on this new model, this article makes a comprehensive analysis and discussion on the energy transition of each country. The common points and the differences of energy transition in different countries are summarized to grasp the driven forces of energy transition. And a series of development proposals from the aspects of system, economy, technology and behavior are made to overcome the obstacles of energy transition, ensure the smooth progress of energy transition, and achieve sustainable development.

Summary With the rapid development of China's economy in the recent years, the gap between energy supply and demand has been gradually enlarged. To solve the problem of insufficient reserves of natural gas, greenhouse effect, and safety of coal mines, coalbed methane (CBM) is considered as an effective substitute. First of all, CBM industry status is introduced, mainly including resource endowment, development status, technical conditions, and market environment. Then, the policy environment of CBM in China was summarized into 6 aspects: price policy, tax policy, financial subsidy policy, resource management policy, foreign cooperation policy, and other policies. Thirdly, through Politics, Economics, Society, and Technology analysis, Strength, Weakness, Opportunities, and Threats analysis, Politics, Economics, Society, and Technology‐Strength, Weakness, Opportunities, and Threats analysis, and Comparative Analysis, the influence of political factors, economic factors, social factors, and technological factors on CBM industry is analyzed, and the strengths, weaknesses, opportunities, and threats of CBM development are pointed out. Fourth, through the above analysis, development proposal is given from 3 aspects which include policy support, technical support, and market support. Finally, through the analysis of the industry, the related conclusions and the prospect of China's CBM are put forward.

Summary The consumption of fossil fuel has resulted in global warming, environmental pollution, and many other crucial problems. Replacing fossil fuel with renewable energy has become an important issue over the recent decades. As a renewable clean energy, wind power is a relatively well‐developed and promising energy method for current technology development in China. Under the background of growing demand for electricity and enhancing awareness for environmental, the “Internet+ wind power” concept has emerged based on both the wind power's characteristics that renewable and non‐polluting, and the rapid development of the Internet in China. Through querying an amount of literature and information, this paper reveals the resource endowment and policy environment about wind power and energy Internet at first. Then, the PEST‐SWOT strategy analysis model is used to analyze the internalities (strengths and weaknesses) and the externalities (opportunities and threats) of “Internet+ wind power”. According to these results, the paper puts forward some measures (development and utilization, business mode) for wind power accommodation. Then some policy recommendations have been proposed. The government should provide favorable conditions for wind power grid with the “Internet+” technology innovation.