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   goatsarah (goatsarah@thegoatery.dyndns.org)'s status on Sunday, 18-Feb-2024 08:11:33 JST goatsarah

   in reply to

   @holsta there isn’t going to be progress because it’s fucking stupid.

   Gonna explain why I think aviation is an exception. Planes NEED to get off of kerosene. It’s filthy.

   Planes are about, first and foremost, weight. Batteries are no good. They are heavy and they stay heavy even when flat. A plane that’s burned all its jet fuel is a light glider. A plane full of flat batteries is a flying brick.

   So the fact that you’re chucking out the back is a benefit. Planes also have a lot of empty space inside the fuselage so the fact that hydrogen has shite energy density by VOLUME is not so important as it having pretty good energy density by MASS.

   And finally, they fly from airport to airport quickly. Airports have economies of scale to handle large quantities of the stuff in deep cryo and the planes are not sitting around fuelled up for days on end, so the fact that it fucks off by itself doesn’t matter so much.

   But for automotive and domestic use? Forget it. Batteries are objectively superior for automotive and always will be. For domestic use, you have to change all your appliances anyway because if you try using hydrogen in methane burning appliances they fucking explode.

   And air source heat pumps are about 3x more efficient at producing hot water even in cold climates.

   And cooking over a naked flame is filthy and inefficient. We are not fucking Bronze Age cave dwellers and induction hobs are a thing.