Growing demand for alternative green energy conversion and storage has renewed interest in hydrogen technologies such as fuel cells, water electrolyzers, and steam reformers. While this interest has provided new opportunities for sustainabilityfocused R&D in various industries, the costs and time associated with experimentation can be barriers to production. Incorporating multiphysics simulation into the R&D process streamlines innovation by providing engineers with a better mechanistic understanding of a design as well as the ability to account for any physics phenomena that may affect the design’s behavior and to flag potential problems well before production.