电力短缺不能仅仅依靠拉限电和大量地建电厂的外延方法来解决,然而实践检验表明其社会成本较高。本文企图走内涵发展的道路,在定义电力使用效能的基础上,根据历史统计数据,运用比较的方法,研究上海三个产业用电效能的成因、特点及其规律,为解决上海和全国缺电问题提供新的途径。 The shortage of electricity can not be solved by simply pulling on the power and extensively expanding the plant. However, practical tests show that the social costs are high. This paper intends to take the road of connotation development. Based on the definition of power use efficiency, based on historical statistics, the author uses comparative methods to study the causes, characteristics and rules of electricity consumption in Shanghai’s three industries. In order to solve the problems of power shortage in Shanghai and the whole country, The problem provides new avenues.