Hydrogen faces water scarcity risk
The industry is exploring the economics of wastewater and seawater electrolysis amid increasing risk of drought and limited access
Water access and the risk of scarcity is a growing concern for the energy industry as the climate changes. But while the hydrogen sector remains confident that will not push the dial on project economics, it is investigating alternative streams to freshwater for future hydrogen production. An electrolyser requires at least 9kg of water for every kilogram of hydrogen produced, while steam methane reformation consumes a minimum of 4.5kg per kilogram of hydrogen. To prevent clogging by particulates, the water must also be as free of salt, minerals, organic matter and other contaminants as possible. A letter to the non-profit American Chemical Society notes that, while 2.3gt of green hydrogen wo
Also in this section
17 April 2024
Building green hydrogen ports and lower production costs key to becoming global exporter
16 April 2024
European Commission to provide list of approved certifiers in a move that is expected to help unlock investment in the sector
9 April 2024
Higher country-level risk and green hydrogen project execution risks are driving up financing costs, according to the Hydrogen Council and McKinsey
4 April 2024
EET’s $2.4b plan to decarbonise major refinery in northwest England hits key milestone with CO₂ pipeline approval