Through study on problems of the fixed cost apportions and the cost curves in power plants
the total cost curve during operation of the power plant
the benefit-loss balanced curve
and the reference curve for start-up or shutdown of the unit can be obtained.Using all kinds of above-mentioned curves and other information from the power market
an optimal bidding curve under roles of the power market can be given
providing reference for the marketing strategy
the bidding combination strategy
and decreasing cost of power plant in the power market.