中长期发展:2050年后能源体系转型将完成“转变能源供需模式,使其由‘以粗放的供给满足增长过快的需求’向‘以科学的供给满足合理的需求’转变。”2011年2月28日,在中国工程院召开的“中国能源中长期(2030、2050)发展战略研究成果”发布会上,中国工程院院士、该战略研究项目组组长杜祥琬解释中国能源如何科学发展。《中国能源中长期(2030、2050)发展战略研究》(以下简称《战略研究》)提出,要科学认识2050年前中国能源发展阶段的战略定位。2050年前的四十年,是中国能源体系的转型期。2050年后,中国将拥有一个中国特色的能源新体系,也将进入比较自由的绿色、低碳能源发展阶段。2030年前后能源结构将出现历史性转折杜祥琬指出,资源和环境代价过重、结构不良、效率偏低 Medium-to-long-term development: Transformation of the energy system after 2050 will be completed. “Transforming the mode of energy supply and demand from a ’wide supply to meet the demand of rapid growth’ to ’meet the reasonable demand with scientific supply’.” 2011 On February 28, at the press conference held by the Chinese Academy of Engineering on the mid-to-long term (2030, 2050) development strategy research results of China’s energy resources, Du Xiangtao, an academician of the Chinese Academy of Engineering and head of the strategic research project team, explained how China’s energy resources have developed scientifically . The Medium and Long-term Energy Development Strategy Study (2030,2050) for China’s Energy (hereinafter referred to as the “Strategic Study”) proposes to scientifically understand the strategic positioning of China’s energy development stage by 2050. Forty years before 2050 is the transition period for China’s energy system. After 2050, China will have a new energy system with Chinese characteristics and will also enter the relatively free green and low-carbon energy development stage. A historic turning point in the energy mix around 2030 Du Xiangtao pointed out that resources and the environment are too expensive, poorly constructed and inefficient