"It is critical to find alternative low- or no-emission solutions"

The article explores the urgent need for low-emission solutions in the mobility and transportation sector, highlighting the potential of hydrogen combustion engines. Scott Baker, Vice President Engineering at Westport Fuel Systems, discusses the challenges and advantages of using hydrogen in heavy-duty commercial vehicles. He explains how Westport has successfully converted a natural gas engine to run on hydrogen, achieving comparable performance with minimal modifications. Baker also addresses key technical aspects such as knock resistance, valve timing, and injection pressures, emphasizing the reliability and efficiency of the High-Pressure Direct Injection (HPDI) system. The interview concludes with a discussion on the future of hydrogen engines in the context of zero-carbon goals, underscoring the importance of alternative solutions for heavy-duty trucks.