Task 45: Renewable Hydrogen Production

Task Manager: Alberto Giaconia (ENEA – IT)

Brief Description

The new “Renewable Hydrogen production” (RE-H2) task aims to monitor the evolution and suppor the visibility of a wide range of renewable hydrogen production technologies as well as provide indications for their technological assessment. The idea is to provide clear and brief updates on the status of different pathways to green hydrogen production, from water-splitting (electrolysis, thermochemical, hybrid) to the conversion of biomass/waste-derived feedstock (biological, thermochemical). Clear indicators will be provided to assess processes with different maturity or rely on different sources to enable policymakers and stakeholders to get an updated picture of the status of renewable hydrogen production technologies.

TASK 45’s WORKPLAN – Download it here

General Objectives

The RE-H2 task will cover all aspects that are needed to assess RE-H2 technologies considering the updated state.

The following elements define the main scope:

  • Data analysis
  • Technology assessment
  • Techno-economic analysis
  • Cross-cutting in cooperation with other TCPs and organizations/partnerships

Download the workplan here


Specific Objectives

The RE-H2 task will address the following objectives and sub-objectives:

  • Monitor the evolution of the RE-H2 production technologies worldwide (or in the countries participating in the Task)
    • Updating the SoA of the renewable hydrogen production pathways, also considering the TRL assessment database already consolidated by the IEA for several technologies
      • Providing an overview of different National & International targets: Europe, USA, Japan, Korea, China, Australia, etc. plus relevant targets from industries & stakeholders
  • Develop a framework for the technological assessment of the different approaches to RE-H2 production,
    • Defining KPIs and methodologies for calculation
    • Providing general guidelines for the selection of technologies in specific scenarios
  • Support visibility of RE-H2 technologies to foster their deployment.
    • Creating an updated database of RE-H2 production plants, both R&D and (pre)commercial: success stories, plants in operations/planned, etc.
  • Disseminating Technology briefs, public reports, and outreach workshops

Task Structure

Subtask 1: Electrolysis. Expert group to supply updated technology information on Electrochemical water-splitting, considering currently most consolidated approaches like alkaline electrolysis (AE) and Polymer electrolyte membrane (PEM) electrolysis, but also les mature approaches like Anion Exchange Electrolysis (AEM),

Subtask 2: Photo(electro)chemical water-splitting. Expert group to supply updated technology information on photochemical (PC) and photoelectrochemical (PEC) water-splitting.

Subtask 3: Thermochemical water-splitting. Expert group to supply updated technology information on Thermochemical Water-Splitting (TCWS) processes driven with concentrated sunlight, including hybrid processes (i.e., where an electrochemical step is also included) and direct water thermolysis.

Subtask 4: Thermochemical conversion of C-feedstocks. Expert group to supply updated technology information on Thermochemical Conversion of Biomass (TCB), including biowastes, considering the different technology approaches, such as pyrolysis, thermal gasification, partial oxidation, steam reforming of biogas/biofuels, and cracking, including the option of renewable heat supply (e.g., solar reforming or electrified reforming).

Subtask 5: Biological processes. Expert group to supply updated technology information on Biochemical Conversion (BCC) of biomass-derived feedstock, including biowastes, to hydrogen, considering the different technology approaches, such as dark fermentation, photobiological and bio-electrochemical routes.

Task Force on general Analysis & Communication (A&C-TF): the A&C-TF will be composed of: Task Manager and deputies, Sub-task leaders, and other participants to contribute to the cross-cutting assessment, comparison of processes and dissemination towards policymakers and stakeholders.