With the proposal of carbon neutrality goals and hydrogen energy development strategies in various countries

the development and construction of hydrogen supply chains have become important priorities. However

existing research has paid little attention to the hydrogen market and pricing. Therefore

a hydrogen pricing method based on marginal pricing theory is proposed in this paper

which adapts to hydrogen systems with renewable-to-hydrogen as a major source

in the future. A hydrogen energy market is established to define the industrial chain of hydrogen and the hydrogen trading process. The hydrogen market-clearing model is formulated considering a dynamic line pack. Due to its nonconvexity

the model is equivalently converted into mixed-integer second-order cone programming

and the optimality gap is minimized by introducing a penalty term. Based on the clearing solution

the concept and calculation method of the locational marginal hydrogen price (LMHP) are proposed with respect to the locational marginal price (LMP) in electricity markets. Case studies based on a modified Belgium 20-node gas network and Pennsylvania

New Jersey

and Maryland (PJM) market operation data demonstrate the consistency between LMHP and LMP.