• 15 Posts
  • 37 Comments
Joined 5 months ago
cake
Cake day: June 22nd, 2024

help-circle










  • Green electricity is both cheaper and much more available. Green H2 is inherently at a price disadvantage compared to green electricity. Unless absolutely unavoidable (as with steel or fertilizer production), why would you use it for anything?

    Maybe I am looking at this from too much of a European perspective, i.e. on average, the grid is stronger here than e.g. in the US – but I don’t see going off-grid as a major factor either. If you can, you generally avoid going off-grid intentionally, because it’s just extremely expensive. Even if you’re planning for natural disasters, I see going with grid-connected, off-grid-capable solar as a much better idea, at least for most of the year.






  • Now they just need to solve the energy consumption and cost parity questions surrounding green hydrogen.

    And no, burdening taxpayers with financing nuclear reactors to produce “cheap” (read: subsidized) energy/pink hydrogen does not count.

    I’ve recently heard about natural H2 reservoirs for the first time. If that turns out to have potential, I guess it might be the saving grace H2 in land transport applications. Although that’s kind of like using fossil fuels except without the CO2 emissions.

    And solves ebike/powerstation charging on the go problem.

    You still need to either take an additional cartridge or find energy infrastructure.

    Also, wouldn’t you need an entire hybrid drivetrain in your ebike to make this work?

    So, I guess portable H2 tanks don’t solve any issues for cyclists/powerstation users or am I missing anything?





  • Switching from existing structures like parking etc to public transport? How? How fast? What do we do with that space? Who pays for it? I’m frustrated by the system but we can’t just start from a blank slate, we have to work with it.

    Are you serious? I was in the US just once, and within 3 days, I felt depressed. I had originally planned to travel through the US and CA for two weeks but following a one-week work thing and decided to just return after following obligatory week 1.

    At least two thirds of basically any downtown appears to be parking and there’s at least a further 15% that’s overly wide roads.

    You could remove the concrete and build parks which would improve those cities’ water household and have made me feel less depressed. You could build housing. You could build stores. You could build third places. You could make downtowns livable.

    And it’s definitely possible. Because those places all existed before they were bulldozed to better suit cars.