电力市场中的市场势力问题初探

Preliminary Inquire into Market Influence in Electric Power Market

市场势力是电力市场正常运行的一大障碍。发电商利用市场势力抬高电价 ,既损害了电力用户的利益 ,也使得市场不能有效竞争和合理配置资源。电力系统本身的特点和市场设计存在缺陷是电力市场中形成市场势力的原因。稀缺性是发电商能够利用市场势力的基础。目前市场势力的平抑措施主要有价格封顶 ;期货和长期双边合同 ;加强电网建设 ,实现网络互联效益 ;加强市场监管力度 ,规范各市场主体的行为。应分析各种平抑措施的优缺点 ,防止负面影响 ,多方协调 ,建立真正意义上的竞争的电力市场。

The market influence are a big obstructs for the power market under normal operation.The power generation companies raise the electric tariff by means of the market influence,which damages not only the benefit of the power consumers,also results in non effective competition of the market and non reasonable configuration of the resources.The self-properties and market design defects of the power system are two factors to form the market influence in power market.The rareness is the base for the power generation companies to use the market infhuence.At present the restrain measures to control the market influence are mainly the following:control of price-ceiling price;forward and long-trem bilateral contract;enhancing the construction of power networks to realize the network interconnection benefits;standardize the actions of all main bodies in the market.It is necessary to analyze every advantage and disadvantage of all restrain measures to prevent from negative influence.The coordination should be carried out in all respects to set up a real competitive power market.