“华东电网保长三角、长三角保上海。世博会期间,紧急情况下,华东电网有限公司将统一快速调配全网资源支援上海,确保上海电网稳定运行。”这是3月1日华东公司正式确定的世博梯度保电原则,并得到上海、江苏、浙江、安徽、福建五省市电力公司的支持。上海用电负荷超过三分之一需 “East China Power Grid Yangtze River Delta and Yangtze River Delta to Shanghai. During the World Expo, in an emergency, East China Power Grid Co., Ltd. will be unified and rapid deployment of the entire network resources to support Shanghai to ensure the stable operation of Shanghai Power Grid.” This is March 1 East China officially confirmed Expo gradient power conservation principle, and by Shanghai, Jiangsu, Zhejiang, Anhui, Fujian, five provinces and municipalities power company’s support. Shanghai electricity load more than one-third need