The Technology Collaboration Program (TCP) on Sustainable Combustion held its 47^th Task Leaders Meeting (TLM) in Ischia, Italy on June 22-26, 2025. TLM provides a unique opportunity for the leaders of the Combustion TCP collaborative tasks to bring all the task participants together for detailed technical exchanges, as well as programmatic coordination.  Ten separate TCP tasks reported at the meeting: Systems Analysis, Policy Briefs for Hydrogen and Its Vector Fuels, net-Zero Carbon Engine Technologies, Gas Engines, Gas Turbines, Fuel Injection Processes, Soot, Solid Fuel Combustion, Combustion Chemistry, and Exhaust Aftertreatment Treatment Systems. More than 45 researchers, program managers, and industry representatives attended from all 12 countries participating in the TLM, plus other countries. 

     Brief overview presentations were given by each Task Leader.  These were followed by detailed technical presentations from task participants. The technical content of the meeting centered on internal combustion engines for hard-to-electrify sectors of transportation and power generation and on utilization of sustainable, non-fossil fuels in these sectors.  There were two invited speakers. Alberto Vassallo, Senior Manager, Advanced Engineering at Dumarey Automotive Italia S.p.A. spoke on,  “Powering the Future: Evolution of Internal Combustion Engines and the Path to Zero-Carbon Solutions.” Nicole Wermuth , CSO for LEC spoke on, “Renewable Fuels in Large Internal Combustion Engine Applications.” Overall, the meeting provided significant interaction and discussion among the TLM participants and others attending.

      The TLM was organized by Alessandro Montanaro (TCP Chair for 2025) and Luigi Allocca (TCP Delegate) both from CNR, Istituto di Scienze e Tecnologie per l'Energia e la Mobilità Sostenibili. The 48^th TLM will be held October 18-23, 2026 in Busan, Korea.