Research on the Admission Standard of Large Consumers Direct-Purchasing Based on the Externality Theory

Large consumers direct-purchasing is a very important stage of opening up user options. And the identification of large consumers´ qualification is the important prerequisite of direct-purchasing reform. Based on the externality theory of public economics, considering state energy industry and environment protection policies, and the status of regional economical development, this paper develops a series of standards to qualify large consumers that not only consider the scale of electricity consumption but also consider consumers´ industries, business lines, and recent years´ newly added electricity consumption. In the end, the state can meet the reform objectives, such as large consumers can improve the utilization rate of energy; regions can improve their economical sustainable development, etc.