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<正>近年来,世界经济发展加快,全球能源需求迅速增长,能源、环境和气候变化问题日益突出。大力开发利用可再生能源资源,减少化石能源消耗,保护生态环境,减缓全球气候变暖,共同推进人类社会可持续发展,已成为世界各国的共识。 相似文献
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<正>我国是世界上少数几个以煤炭为主要能源的国家,全球一次能源消费构成中煤炭仅占27.8%,而我国高达68.9%。而根据我国能源条件,这种能源消费结构今后20年不可能有太大变化。同时,由于化石 相似文献
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一、生物质能概述 生物质能是人类使用的最古老的能源。随着世界经济持续快速地发展和人口数量迅速地增长,人类对能源的需求必然不断地增加,然而目前人类赖以生存的化石能源却正在迅速地减少。据预测,地球上蕴藏的可以开发利用的煤和石油化石能源将分别在200年、40年内耗竭,而天然气也只能用60年左右。与此同时,由于化石能源的过度开发利用带来环境污染和全球气候变暖的问题也日益突出。因此,寻找和开发新型可再生能源迫在眉睫。而生物质能恰恰能满足这些要求,因为它具有不断的可再生性、对环境的友好性和能够抑制全球气候变暖。目前… 相似文献
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正日前,联合国气候峰会在纽约联合国总部召开。中国国家主席习近平特使、国务院副总理张高丽出席峰会并发表题为《凝聚共识落实行动构建合作共赢的全球气候治理体系》的讲话。张高丽在讲话中提出,将显著提高非化石能源比重作为应对气候变化的关键行动之一。这意味着作为非化石能源的主力,风能和太阳能将获得应有的战略定位和巨大发展空间。为应对日益严峻的全球环境气候变化,中国政府此前向国际社会郑重承诺,到2020年,实现单位国内生产总值二氧化碳排放比2005年下降40%-45%、非化石能源占一次能源消费比重达到15%左右。这既是为了树立中国负责任大国的国际形象,也是中国节能减排、调整能源结构、加快转变发展方式的迫切要求。2013年与2005年相比,中国碳排放强度下 相似文献
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<正>化石能源的使用导致全球气候变暖,对人类生存环境造成严重破坏,能源作为社会发展的基础,以可再生绿色能源取代化石能源,调整能源结构已成为世界各国政府关注的重要问题之一。可再生能源的开发和应用可以有效缓解自然资源的过度消耗,同时助力社会经济持续发展。以光伏发电为首的可再生能源在全球得到广泛关注,我国光伏技术发展、推广应用更是领先于其他国家。分布式光伏发电是给用户端提供日常电力供给。对企业发展而言,企业能源管理与成本控制息息相关,采用光伏发电可以有效降低生产成本,因此分布式光伏发电技术应用广泛,如建筑设计、室内环境设计等。LED用于照明具有使用寿命长、效率高的优势,与光伏发电结合可达到环保、高效、节能的目的。 相似文献
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AC coupling has proven itself in different kinds of system during the last couple of years. Especially in the electrification of off-grid, remote areas, this technology ensures a flexible and sound energy supply. Projects in the world show how important this technology already is and will become for the design of efficiently working island grid systems. This system technology will further expand its position in the coming years to appear in other international projects.The modularity of the system has made it easy to adjust the systems without any great difficulty to the demands of the energy supplier or of the end-users. System integrators like Shell Solar connect these new technologies with their long-term experience and use them successfully. 相似文献
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Renewable energy is in a rapid development stage in China, and some technologies are in commercialisation or near commercialisation and have large development potential from resource, technology and industry points. Renewable energy has begun to play a role in the energy structure, and it has the potential for large scale development. According to the national target, renewable power will represent 12% of the total power capacity in China in 2020. It is expected that it will reach 30% or even more in the 2040s and renewable energy will be an important substitute energy at that time. 相似文献
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The escalating demand for electricity in China has caused an electricity shortage in the past several years. This paper discusses the role of demand response (DR) as an integral component in alleviating the problem and coping with this shortfall. It reviews current experience with DR programs, analyzes China's situation and makes suggestions for DR implementation. Although China's DR programs offer high potential to succeed, they require substantial efforts in resolving such key issues as the programs' funding mechanisms, pricing, and relationship with electricity industry reform. 相似文献
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China's energy shortages are a major problem for its industrial and agricultural modernization programme. Coal-fired power stations are rapidly being built to help the problem in the short-term, but in the long-term China intends to make use of its vast resources of hydropower. The authors present a summary of the state-of-the-art of hydropower in China. 相似文献
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