Abstract
Energy transition discussions, policymakers are increasingly viewing hydrogen as a preferred emissions-free substitute for oil, natural gas and coal in hard-to-abate sectors. However, hydrogen is not a primary energy source but rather is a carrier of energy. Many factors, including its source and the technology used to manufacture it, influence its production costs. Currently, hydrogen manufacturing processes themselves have significant carbon footprints. Thus, for hydrogen to be accepted as a low-carbon fuel source, its production methods must also be decarbonized.
