In the past year, the HELIOS project achieved several important milestones in advancing high-hydrogen gas-turbine combustion technology. The consortium successfully demonstrated 100% hydrogen start-up and ramp-up in a high-pressure environment and achieved low NOx emissions at elevated firing temperatures, confirming the strong potential of the FlameSheet™ concept for future low-carbon power generation.
Two public deliverables, one on advanced hydrogen combustion modelling and one on flashback experiments in an optically accessible burner, as well as two papers, provide valuable insights for the research community and industry, strengthening Europe’s knowledge base on safe, stable and efficient H₂ combustion.
In parallel, the project has delivered a comprehensive engineering framework for hydrogen-ready auxiliary systems and prepared optimized prototype combustor components now entering atmospheric testing. These achievements mark significant progress toward enabling reliable, flexible and clean hydrogen operation across a broad fleet of gas turbines.