The recovery mode and pricing method about connection charge for power plants are systematically studied. It is proposed that the coordination between recovery mode and the pricing mechanism of shared network should be taken into account when the connection recovery mode is chosen. A design proposal of connection charge based on shallow recovery mode is put forward

which mainly focuses on the choosing of pricing benchmark

optimal pricing in each price band and the recovery periods of the investment and cost of connection project of different power plants. As for the choosing of pricing benchmark

“per kilometer investment unit” and “per MW-km investment unit” are taken into consideration. In the part of the research of optimal pricing in each price band

a two-step optimization model based on the exhaust algorithm is proposed. And the regression analysis is used to study the optimal quantity of price bands. Combined with the case study with the actual data

it is concluded that “per kilometer investment unit” is more reasonable than “per MW-km investment unit” as pricing benchmarks for connection charge of power plants. It is also suggested that the adequacy of cost recovery

the fairness of cost allocation and the efficiency of administration of electricity price should be taken into consideration together when the quantity of price bands of connection charge are made.