This article is a repository listing the failures of projects involving hydrogen.

- Mantova, Italy (Jul, 2013) – La Gazzetta di Mantova
- Whistler, BC (Dec, 2013) – Scientific American
- Kuching, Sarawak (Nov, 2019) – Borneo Post
- Roma, Italy (Mar, 2019 and May, 2020) – Hydrogen bus pilot project never started – Vaielettrico
- Tokyo, Japan (Jul, 2021) – Financial Times
- Montpellier, France (Jan, 2022) – Electrive
- Aberdeen, Scotland (Feb, 2022) – BBC
- Terni, Italy (Oct, 2022) – HydroNews
- Baden-Württemberg, Germany (Oct. 2022) – Hydrogen Insight
- Imperia, Italy (Nov, 2022) – Riviera24
- Dundee, Scotland (Dec, 2022) – The Courier
- Wiesbaden, Germany (Dec, 2022) – HydrogenInsight
- Aurora, Norway (Mar, 2023) – CleanTechnica
- USA, (Mar, 2023) – Hyzon Motors truck deliveries – HydrogenInsight
- France (Apr, 2023) – the Hopium french company abandons its hydrogen car project – Entreprendre
- Lower Saxony, Germany (Aug, 2023) – Quartz
- Glasgow, Scotland (Aug. 2023) – GlasgowLive
- Liverpool, UK (Aug. 2023): “Flagship Liverpool hydrogen buses out of action due to ‘problems with global H2 supply'” – Hydrogen Insight
- Bolzano, Italy (Sep. 2023) – not a true C&B, this city runs BOTH BEV and FCEV buses, finding the latter 2.3 times more expensive than the former – Ecquologia
- Denmark (Sep. 2023): “All hydrogen stations in Denmark will close” – EnergyWatch
- Denmark (Sep. 2023), a direct consequence of the above: “Danish taxi company seeks help to fuel its 100 stranded hydrogen vehicles” – HydrogenInsight
- Netherlands (Oct. 2023) Hyzon will close its hydrogen truck assembly plant in Europe – HydrogenInsight
- Pau, France (Nov. 2023) Hydrogen bus project converted to electric – La Gazette des Communes
- USA (Nov. 2023) “Plug Power share price plunges by 40% after firm admits it could fold in next 12 months” – Hydrogen Insight
- Dallas, USA (Nov. 2023) “Rolls-Royce quits electric-hydrogen propulsion development” [for aircraft] – Airways Magazine
- South Korea (Nov. 2023) “Three quarters of H2 refuelling stations in South Korea closed” (Hydrogen Insight)
- Redcar, UK (Dec. 2023) “Redcar Hydrogen for heating project cancelled” (Redcar Hydrogen Project website)
- Rodez, France (Dec. 2023) “Fin du project hydrogène è l’usine Bosch de Rodez” (France Bleu)
- California, USA (Feb. 2024) “Shell to close all of its hydrogen refuelling stations in California” (Hydrogen Insight)
- Tyrol, Austria (Apr. 2024) “Austrian railway scraps plans to replace diesel trains with hydrogen-powered options” (Hydrogen Insight)
- Moses Lake, USA (June 2024) “Universal Hydrogen, pioneer of hydrogen-powered flight, goes bust” (Seattle Tmes)
- Perth, Australia (July, 2024) “Andrew Forrest’s Fortescue slashes 700 jobs, tempers green hydrogen ambitions” (WAtoday)
- California, USA (July, 2024) “Class Action Claims Toyota Mirai Electric Vehicles Were Misrepresented Amid Hydrogen Fuel Shortage” (ClassAction.org)
- Fosham, China (Sep, 2024) “Word’s first hydrogen tram line suspended” (International Rail Journal)
- Québec City, Canada (Oct. 2024) “Hydrogen cars flunk the test of quebecois winters” (Le Devoir)
- Terje Hauan on LinkedIn lists 10 major hydrogen projects that are going belly up, probably not included in the list above
- Australia and Japan, (Dec. 2024) “The first plan to transport liquid hydrogen from Australia to Japan is suspended” (Expansiòn)
Please contribute to this list by sending article links to me.