Hydrogen can be produced from many different energy resources, and it has diverse applications and uses
across many different sectors and industries. Thus, many national governments are looking to invest in
hydrogen technologies as significant contributors to meeting their future energy needs and
decarbonization/environmental goals. For example, both the US and Republic of Korea have invested
significant resources into hydrogen and fuel cell R&D to expand deployment of these technologies in the
upcoming years and decades; such national R&D programs and initiatives may ultimately facilitate the
emergence of the global hydrogen economy. While countries may differ in their approaches to R&D in this
space, it remains clear that the main challenges to expanding the hydrogen industry are shared amongst all
countries: cost reductions for hydrogen production, as well as durability and performance improvement for
hydrogen technologies.