Using experimental PCT data as the input upon which compression cycles were designed, a system dynamic model was used to predict operational performance and efficiencies of a multi-stage metal hydride compressor using TCMCFL in the final high-pressure stage. The performance study results indicate the lower overall energy efficiency of metal hydride compressors compared to other mechanical compression technologies. This is largely unavoidable given the heat required to overcome the metal hydride reaction enthalpy and the sensible heating required to cycle the metal hydride from low to high temperature. Furthermore, despite the compression performance of TCMCFL, we were unable to design a 2-stage metal hydride system that can produce a compression ra- tio of 45:1 (e.g., ∼20 to 875 bar) under the temperature swing conditions of interest (10 to 160 °C). However, the importance of energy efficiency is primarily in its relation to operating expense (OPEX). In many applications, the energy to operate the compressor must be paid for in the form of electricity and/or heat depending on the energy source. One advantage of a metal hydride compressor is that it is a heat-driven process requiring a proportionally small amount of electrical power. In use-case scenarios where heat can be provided at a much lower cost than electricity, the energy usage of a metal hydride compressor may be higher than a comparable mechanical compressor but still be cost-competitive. For future work, there are clear opportunities to further optimize the TCMCFL alloy composition, since a further flattening of the PCT plateau could simultaneously improve its working capacity and compression ratio and lead to better operational efficiencies.