The International Energy Agency (IEA) is conducting a broad programme on energy research, data compilation, publications and public dissemination of the latest energy policy analysis and recommendations on good practices. Current work focuses on climate change policies, market reform, energy technology collaboration and outreach to the rest of the world. IEA/Hydrogen Implementing Agreement (IEA/HIA) has launched an experts group review to work on a new task : High Temperature Process (HTP) for Hydrogen Production.
This task - referenced as Task n°25 - is a three yeas project that officially started by a kick-off meeting on October 2007.
This project aims at focusing on Zero-carbon high temperature processes :
- Thermochemical cycles (from 500°C to 2000°C),
- High temperature electrolysis,
- Hybrid systems coupling thermal decomposition and electrolytic decomposition,
- Innovative direct water splitting methods.
The heating source can come either from solar concentrator or from Nuclear Reactors.

Therefore, the overall goal of this expert group gathering today around 25 experts from 12 different countries, will be to share worldwide existing knowledge on HTPs and develop objective expertise on global assessment for HTPs to be integrated in hydrogen production road mapping. The purpose of this paper is to present the project program, organisation and roadmap for the three coming years.