Vienna’s Hydrogen Bus Failure Is A Warning To Transit Agencies

CleanTechnica
By Michael BarnardMay 6, 2026, 4:37 pm263 ptsTop
Seven of Vienna’s ten new hydrogen buses are sidelined because CaetanoBus cannot supply ordinary spare parts. Not hydrogen tanks. Not fuel-cell stacks. Not high-pressure valves. Door compressors and blind-spot monitoring systems. That is what makes the case important for transit procurement agencies. The…

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