Large waterborne vessels is a good application of hydrogen fuel cells, IMHO. Already large LNG-powered vessels are becoming common, from LNG tankers themselves

Large waterborne vessels is a good application of hydrogen fuel cells, IMHO. Already large LNG-powered vessels are becoming common, from LNG tankers themselves to LNG-fueled cargo ships and even cruiseliners. Liquefied hydrogen would require similar refrigeration and insulation technology. In fact, here are two LNG-fueled dredging vessels: https://www.vanoord.com/news/2018-van-oord-adds-two-new-lng-vessels-dredging-fleet https://www.vanoord.com/news/2018-van-oord-adds-two-new-lng-... Natural gas can be made by combining electrically-produced hydrogen and CO2 (which CAN be pulled from the atmosphere). But I do think LH2 is more likely to be the main energy source if we go to synthesized fuels.