Comments by "Diana Pennepacker" (@dianapennepacker6854) on "Why This Hydrogen Fuel Cell is Engineering Genius" video.

  1. It isn't even just how hard it is to handle. The corrosion, and leaks are definitely a big part why it is stupid. It is the volumetric density that is the issue. Unless we want massive vehicles with that is all fuel tank. Hydrogens volumetric density is the issue! You can have the most efficent fuel cell you want. The problem is even 500 BAR tanks don't hold a whole lot. Those high pressure tanks are heavy and expensive for saftey reasons so it isn't like you can just go bigger like a rocket. You don't want to skimp on the quality of the construction either since that will kill people randomly. When you factor in the fact that battery tech developing as fast as it is? It makes no sense to try to build everything for hydrogen when EVs can out perform them in every metric. Look at Toyotas offerings. Their cars don't get more range really than an EV. They are heavier than a Model 3, less space inside the vehicle since it is dedicated to holding fuel, costlier, and there is almost zero infrastructure to support it all! Let us not even forget hydrogen cars don't even get the insane HP. They are relatively slow in comparison to a pure EV. I don't know why, because they still use electric motors. Maybe fuel cells just can't unload their stored power like banks of batteries can, I guess. It does blow my mind that a liter of water holds more hydrogen atoms than a liter of PURE LIQUID hydrogen! By a significant amount! Maybe one day we can create some futuristic nano sponge that somehow packs hydrogen atoms into a smaller area, and that takes little energy to release. But until then I just don't see hydrogen being used for anything except niche uses. It is great for space shenanigans.
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  2. Only morons think hydrogen is a fuel. It isn't. It is a storage system like a battery. There is nothing wrong with that. What is wrong is the fact hydrogen is such a scam outside niche industries, and I'm sick of them pushing it as a solution to everything. Hydrogens volumetric is garbage, and no known science that I know of can change that. Look at the Toyota Mirai. Thing weighs more than a Model 3, with poor horse power, AND much less space. It also costs 3 times more. So I don't see it happening.
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  3. I honestly don't think we will ever see hydrogen for many things due to the volumetric density. Even at 700 BAR the Mirai gets the same as other EVs as far as range goes at around 420. While weighing 1k pounds more than a Model 3 with less volume. So what type of power density with total weight of the system? So I wish they gave us better numbers honestly. I am not holding my breath outside of niche uses.
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