Wuppertal, in the German state of Nordrhein Westfahlen, is the home to the Schwebebahn. This suspended railway (Figure 1) is unique in Germany and passengers use the transportation system for 25 million journeys per year. Today, 120 years after Wuppertal’s Schwebebahn opened, the city is still innovating. Green hydrogen produced from power generated by incineration of municipal waste will be used as an energy vector to power a fleet of fuel cell electric buses (FCEBs).
