The goal of this IPHE Working Paper is to trigger a process and take initial steps to develop a mutually agreed methodology for determining the greenhouse gas emissions associated with the production of a unit of hydrogen.
This work is in part a response to the Hydrogen Energy Ministerial 2018, where Ministers through the “Tokyo Statement” asked leading organizations including the IPHE to take action individually and collaboratively to facilitate the goal to develop a hydrogen economy including to evaluate the potential of hydrogen and its effects on carbon dioxide and other emission reductions, both upstream and downstream across a variety of hydrogen production pathways.