But not all hydrogen is created equally.

Amazon thinks hydrogen can be a more sustainable fuel for vehicles at its warehouses, but it’ll have to clean up hydrogen production first.

  • Hypx@lemmy.worldOPEnglish
    19·
    11 months ago

    There are fuel cell powered drones out there. Size hasn’t been an issue for a long time.

    • dragontamer@lemmy.worldEnglish
      141·
      11 months ago

      Do you know what the technology is for the pressurized H2 at these sizes? Its been my understanding that larger vehicles scale better (ie: thicker walls and bigger containers) to better deal with the H2 volume issue.

      Bigger vehicles can take advantage of exotic / expensive processes like liquified H2 or 700-bar pressures or whatnot. I don’t think that’s been miniaturized to drone or forklift sizes though.

      • Hypx@lemmy.worldOPEnglish
        8·
        11 months ago

        They’re still using pressurized gas tanks. Apparently, not even a drone is not too small for such things.

      • cynar@lemmy.worldEnglish
        1·
        11 months ago

        The drones generally don’t use compressed hydrogen (at least the ones I’ve seen). It’s too dangerous. Instead they use a pellet based storage system. You can liberate hydrogen from it, but it’s rate limited. It will burn, but it can’t launch like a flaming rocket.

        The downside is the pellet systems aren’t as simple as just refilling the tank.