Probing Into The Pricing Of Peak Load And Causing Adjustment Of Policies In Hunan

Peak load power pricing is an efficient approach in DSM(Demand Side Management). Using power price as signals, it can lead the power consumers to adopt reasonable power consuming modes so as to avoid the mode of peak and valley. Peak load power pricing, on one hand, can raise electricity load rates, promote the rational distribution of power resources, alleviate peak tension and ensure the safe and stable operation of power systems, and on the other hand, can reduce the consumers' electricity costs and improve the economic and social benefits by encouraging the consumers to change their original power consuming modes.This paper researches the peak load power pricing policy and its application in Hunan Province, discovers and analyzes some existing problems. The most serious problem is: when peak and valley prices are set based on the normal price under the assumption that the total income would not change, because of the substantial increasing use of valley pricing power and less use of peak pricing power, the total income of power enterprises (including generation enterprises and the power grid) reduces. Moreover, with the further implementation of the existing policy, the losses of power enterprises would become larger.Integrating the problems existing in the peak load power pricing of Hunan Province, especially the problem of less income of power enterprises, this paper considers and compares the classical models of peak load power pricing, analyzes several commonly used peak load power pricing methods and points out their shortcomings. Then, from the perspective of efficiency (allocation of resources) combined with distribution rather than only the perspective of function of peak load power pricing, this paper proposes a peak load power pricing model which can maximize efficiency under the condition of distribution constraints. Based on the model, the paper proposes a peak load power pricing method that is based on the consumers' price elasticity of demand and gives some advices to the peak load power pricing policies and measures. Meanwhile, this paper, in order to maintain the fair interests of power enterprise (power grid), also analyzes the power enterprise's countermeasures to peak load power pricing so as to reduce its losses.