As an index to evaluate the efficiency of energy system

the average coal consumption of electric power supply has been widely used in power industry. However

this index cannot reflect the electricity structure and electricity consumption level of a country and region very well. Therefore

the index of general coal consumption of electricity utilization with the unit be gram per kilowatt-hour is defined in this paper to illustrate the amount of standard coal consumption while utilizing one kilowatt-hour of electricity

corresponding to indexes such as coal consumption of electricity generation and coal consumption of electricity supply. Meanwhile

the indexes of general coal consumption of electricity generation and general coal consumption of electricity supply are also proposed to reflect the power structure and energy consumption level of one specific region or province in sight of supply side. The analysis of these indexes in typical provinces during recent years shows that they can be used to explain the structure and level of electricity utilization in one specific region or country and can provide references for accurately understating and calculating the consumption and emission of fossil fuel during electricity utilization

transmission and alternation.