– The amount of water required to produce the projected amount of hydrogen to achieve net zero will be minimal compared with usage from other sectors such as agriculture.
– It is in fact going to be at least 33% less than the amount required by the current fossil fuel energy production activity that it is replacing.

Graph based on data from https://pubs.acs.org/doi/10.1021/acsenergylett.1c01375
In addition, studies are being carried out to explore the additional benefits of green hydrogen production such as:
– Using wastewater as a source of hydrogen production water; eliminating the need to compete for clean water demand, while at the same time improving the wastewater treatment process.
– Countries with water scarcity problems addressing their water shortage issue through hydrogen.