New technologies in transport. By. Introduction. What is it. The World's First Hydrogen-Powered Tram. World's first hydrogen-powered tram is red. High speed. "It took two years for Sifang to solve key technological problems. IT is Future. Hydrogen is also a potentially world-changing companion for renewables like solar. Comments. Sifang's tram seems to be the first that's commercially ready. Problem. Here's an obvious problem facing the future of hydrogen-powered transit. Link for video. Thank you for your attention.