| In electricity market,a reasonable capacity price mechanism can induce the generators to invest new capacities efficiently.It is crucial for the improvement of the system capacity reserve which in turn assures the reliability of power supply.Hence,to provide a pricing mechanism according to the real value of capacity scientifically has a very far-reaching and positive influence on both the safety-operating of the short-term system and the adequacy of the long-term capacity reserve.The paper aims at establishing a capacity pricing model which is suitable for the stage of our electricity market development,and also offers a theoretical research on how to design a bidding flow and settlement of electricity fee which are matched with the pricing model.Based on the model,the generators can decide how much investment in new capacities would be proper.The result of the numeric example of certain region in China shows that on condition of providing available capacity,the application of this pricing model can not only allow for the full recovery of generating capacity costs,but also provide a suitable price signal for investment to assure that the capacity reserve rests at a ideal level. |
