Research On Transmission Pricing In Electricity Market

With the establishment of the electricity market and the opening of transmission grid, more and more users demand fair and equal electricity delivery. The transmission sector which is required to separate from distribution sector and generation section will become an independent electricity delivery company. The independent company is supervised and controlled by government and at the same time will be responsible for the safe operation of electricity system and the economic operation of market transactions. Meanwhile, transmission grid is not only to simply deal with the power demands of clients, but also clearly definite transmission service,the clients rights ,service costs of transmission system, equally supplies the service to the market participants sharing the costs scientifically.At the beginning,this thesis introduces the basic content of transmission service theory in details, analyzes the calculating method of transmission costs, and then generally situates various transmission pricing methods respectively with their advantages and disadvantages. Secondly, the thesis introduces transmission pricing method in special electricity market aboard. Thirdly, the thesis introduces the transmission service applying and implementation as well as supervising method and future transmission planning of grid expanding. Finally, the thesis presents that transmission costs can be divided into the costs relevant to transmission distance, the cost un-relevant to transmission distance and the cost relevant to transmission losses. The thesis takes use of postage stamp method to share Cost l clear, reasonable and fair. For Cost II which is relevant to transmission distance using megawatt-kilometer method, this method can distinguish the cost share in different distance, considering the congestion fee. If Marginal loss coefficient method is applied on cost sharing, not only the good economy signal can be provided in electricity market, but also the whole transmission looses can be reduced with practical tendency to user acceptance.