  With the growing penetration of Inverter-Based Resources (IBRs) in power
systems, stability service markets have emerged to incentivize technologies
that ensure power system stability and reliability. Among the various
challenges faced in power system operation and stability, a prominent issue
raised from the increasing integration of large-scale IBRs is the significant
reduction of the Short-Circuit Current (SCC) level in the system, which poses a
considerable threat to system voltage stability and protection. Thus, a proper
market mechanism to incentivize the provision of SCC as a stability service is
desired. However, the pricing of this service within the future stability
market has not yet been fully developed, due to the nonconvex nature of SCC
constraints and the locational property of SCC. To address these problems, this
work aims to explore, for the first time, a pricing model for SCC service by
incorporating a linearized SCC constraint into the Unit Commitment (UC)
problem, to achieve the desired SCC level and extract the shadow price for SCC
through different pricing methods.
