The IEA produced these datasets as part of efforts to track advances in low-emissions hydrogen technology.

The Hydrogen Production Projects Database covers all projects commissioned worldwide since 2000 to produce hydrogen for energy or climate change-mitigation purposes. It includes projects that have the objective either to reduce emissions associated with producing hydrogen for existing applications, or to use hydrogen as an energy carrier or industrial feedstock in new applications that have the potential to be a low-emissions technology option. Projects in planning or under construction are also included.

The Hydrogen Infrastructure Projects Database covers all projects under development worldwide of hydrogen pipelines, underground storage facilities and import/export terminals dedicated to low-emissions hydrogen and hydrogen-based fuels.

These databases complements other technology-related tracking efforts, such as the Clean Energy Demonstration Projects Database and the CCUS Projects Database.