Improved hydrogen purity measurements to support the rollout of reliable fossil-free transport
Improved hydrogen purity measurements will support the rollout of reliable fossil-free transport
Hydrogen represents a clean and storable energy solution that could play a major role in helping Europe meet its energy demands while reducing greenhouse gas emissions. Hydrogen-powered vehicles are emission-free at the point of use and fossil fuel usage can be eliminated completely if the hydrogen is generated from renewable energy sources. Howevevr, the fuel cells that power hydrogen vehicles can degrade quickly if even trace levels of impurities are present in the hydrogen supply. Recognising the significance of this, the European Commission introduced a Directive in 2014 requiring all hydrogen used to power vehicles to comply with strict purity requirements. This project has developed improved hydrogen quality specifications for fuel cell vehicles together with analytical techniques to enable traceable measurements of hydrogen impurities. The outputs have been used to revise two existing ISO standards, which were too generic for the rapidly expanding range of hydrogen-energy applications, to ensure they address the needs of this burgeoning sector.