Reliance Industries, the Indian oil and gas conglomerate, wants to retrofit almost 5,000 trucks with hydrogen internal combustion engines (H2-ICE) by mid-2024. The intent comes after the collaboration between Reliance and Indian truck maker Ashok Leyland to develop H2-ICE technology, with initial tests conducted in 2022. According to reports, Reliance has achieved near-zero downtime in trials and found hydrogen-powered trucks to be three times more efficient than diesel counterparts. In parallel, US engineering giant Cummins and Indian conglomerate Tata have announced plans to jointly invest in a hydrogen ICE engine production facility in India, reflecting growing interest and investment in this particular technology. This begs the question: What is the appeal? To put it shortly, H2-ICE sits at the sweet…