电力市场监管中的动态价格上限模型

Model of Dynamic Price Cap for Regulation of Electricity Market

为解决发电侧市场最高限价的设置问题,以美国的投资回报率法(ROR)、英国的零售价格指数法(RPI-X)和利润上限法为基础,提出了动态价格上限设置模型.讨论了动态价格上限模型的利润因子取值及对新老电厂的激励作用,证明该模型能使投资回报具有公平性.此模型既能有效抑制边际成本定价造成的价格尖峰问题,又能激励效率,吸引投资.

To overcome the difficulty in designing price cap for regulation of electricity market, a novel model, dynamic price capping model, was proposed based on British RPI （retail price index）, American ROR （rate of return） and PCM （profit capping model）. The determination of profit factor and the incentive mechanism for new and existing power plants were discussed, and it is proved that the model can make the investment return fair. The new model not only provides a solution to suppressing the price spikes effectively, but also is an incentive for power plants to raise their efficiency and for the electricity market to attract investments.