FLEX4H2 – Decarbonised Power​

Flexibility for Hydrogen (FLEX4H2) is a co-funded project by Clean Hydrogen Partnership, EU and Switzerland. It aims to develop a fuel-flexible combustion system capable of operation with any hydrogen concentration in natural gas, up to 100% H2.​ The new combustor design will be fully retrofittable to existing gas turbines, thereby providing significant opportunities for refurbishing existing assets.​
8 *

Partners​

Ansaldo Energia, Edison, SINTEF Energy Research, CERFACS, ETN Global, ARTTIC Innovation, ZHAW, DLR

6 *

Countries​

Switzerland, Italy, Norway, France, Belgium, Germany

4 *

Years

January 2023 – December 2026

8.7 *

M€ Budget​

Funding EU: € 4,178,517.25
Funding Switzerland: CHF 4,012,475.00

6 *

Technology Readiness Level​

Technology demonstrated in relevant environment

Main impacts

New combustor technology for 100% hydrogen
Contribution to Net Zero pathway
Re-utilisation of existing infrastructure
Impacts

Technology

Hydrogen combustion​
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Test rig and validations​
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Numerical modelling​
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Consortium

Meet our partners

News

Interview with FLEX4H2
09 May 2025

Peter Griebel (DLR) talks about high-pressure burner test campaign

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Our latest article is out in Combustion and Flame journal
04 Apr 2025

Read the newest project results from our partner ZHAW

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Events

Clean Hydrogen Partnership – Advancing Hydrogen Combustion Technologies
26/03/2025 - Kobe, JP

FLEX4H2 invited to participate in a workshop in Japan

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ETN Global’s AGM and Workshop
25/03/2025 - Bergen, NO

FLEX4H2 in the EU-project dedicated panel and the expo area

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Twitter feed

Clean Hydrogen Partnership Co-funded by the European Union Project co-funded by Swiss Confederation
This project is supported by the Clean Hydrogen Partnership and its members Hydrogen Europe and Hydrogen Europe Research (GA 101101427), and the Swiss Federal Department of Economic Affairs, Education and Research, State Secretariat for Education, Research and Innovation (SERI)
Views and opinions expressed are however those of the author(s) only and do not necessarily reflect those of the European Union, Clean Hydrogen Joint Undertaking, or Swiss State Secretariat for Education, Research and Innovation (SERI). Neither the European Union nor any other granting authority can be held responsible for them.