Due to the constant increase of incoming clean electricity from the outside region

the rapid development of new energy inside East China region

the slow growth of valley load

and the year-by-year increase of peak and valley differences in electricity consumption

the peak regulation difficulty during the valley period has been becoming an intractable problem and the market mechanism for sharing the peak regulation resources among different provinces is urgently needed to promote the construction of peak regulation resources. In this paper

the market positioning

basic principles and market operation rules of joint peak regulation auxiliary service market design for East China power grid are mainly introduced. Some key issues are discussed such as the reasons for giving priority to the use of peak sharing resources in the province

unified marginal price clearing mechanism

the allocation mode of “who cause

who share”

profits of all participants

and the interactive ways to other provincial markets. Based on the typical-day example of peak-regulation difficulty

the organization process

the settlement method and sharing principle of peak regulation auxiliary service market of East China power grid are analyzed. Based on the simulation of real market operation

the operation efficiency and the correlation between the clearing price and quantity are analyzed. Through the simulation of a real power system and practical operation

it is shown that the proposed inter-provincial sharing mechanism is effective and can help to promote the optimal allocation of peak regulation resources among provinces.