Application And Research Of Differential Power Price

Differential power price policy is carried out against high energy consumption industry in our country, the goal is to bring down blind investment and low level repeated constructions of high energy consumption enterprises,to promote them to improve technologies of saving energy and cutting down attrition so that the backward productions could be cleaned. The equipments and whole technologies of high energy consumption enterprises can be raised competition abilities be strengthened, resources be placed properly. But most enterprises in China is in the process of growing. Their ability of enduring the increase of power cost are weak.It's emergent to carry out differential power price policy effectively.This paper reviews the times of raising differential power price at fist and discusses the necessity of carring out differential power price then.Great progress has been made ever since differential power price is carried out in 2004.However, kinds of problems are still ahead of us such as:enterprises supplied by local power companies and small hydropower stations don't obey differential power price policy strictly.They attract big industry customer by low power price so that some high energy consumption ones could shirk differential power price and put sands on the wheels of popularizing differential power price. Demand of electric power is reduced after differential power price is popularized in some provinces where power supply is abundant. Much water is wasted instead of producing electric power in wet seasons. There are still great demand of some products made in high energy consumption industries which decrease the positive effects of differential power price. Contradictions lie between differential power price policy and local industry construction modification and technology upgrade.This paper discusses the theoretical evidence of differential power price.A differential power price model is set up based on MAS model. Influences of differential power price on prices of commodities and industry power consumptions is discusse on the foundation of present differential power price theoryd in this model to provide references for decision-making of formulating differential power price. Basic conditions of generation and demand side,power companies are introduced in Hunan power market:Power load increase fast in Hunan power grid. Power supply capacity is not enough. Distribution of power plants isn't reasonable. Distribution of water energy isn't evenly allocated. Power load increace isn't in balance, Load performance of power grid is poor. Major power suppliers are diversification so as to cause fierce competition and disorders. Electric power consumption construction is imbalanced, the heavy one trend is prominent.This paper focuses on the influence of differential power price on high energy consumption enterprises,reflecting the endurance ability of industries on power price by such three index:electricity bill-production amount rate,electricity bill-cost rate and production price rise rate. Influence of differential power price on Hunan power company is analysed. Breakeven analysis and power load feature analysis are focused. It elaborates advantages and disadvantages of differential power price influencing power companies from such aspects as sold power quantity,market share,loading rate. Relationship between differential power price and generating side is analysed. The application of differential power price in power generating side is discussed.We raise the following policy suggestions according to the former analysis: Combined use of differential power price and tax policy;combined use of differential power price and desulfurization power price policy,peak and valley power price and power price management; to pursue differential power price on small thermal power plants; to pursue encouraging differential power price on recycled energy generation; to pursue encouraging differential power price on small hydropower stations; suggestions of differential power price on local industries instruction modification as well as technology upgrade.