Abstract:In recent years,as China increases its implementation on energy conservation and emission reduction of thermal power units,the majority of domestic thermal power units need to be reformed.In order to evaluate power plants' energy conservation and emission reduction potential and situations from a reasonable perspective,first of all,an index system for thermal power plant energy saving and emission reduction is built based on characteristics of thermal power plant operating index;then the evaluation model of energy saving and emission reduction is established in accordance with matter-element analysis theory;finally,a real case analysis of five sets of generating units from five plant is made.The results obtained match the real situation,which indicates that the matter-element analysis theory is of unique advantage in evaluating energy conservation and emission reduction for electric generators.