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> What you're missing is that real humans occasionally need to move a mattress. The corollary is that real human civilizations have to move goods over roads wi
by fooker 4y ago
> What you're missing is that real humans occasionally need to move a mattress.
The corollary is that real human civilizations have to move goods over roads with ICE trucks for the foreseeable future unless batteries approach the energy density of diesel.
- ZeroGravitas 4y agoTrucks are already moving to electric. It not going to happen overnight, and currently bans on new sales only are scheduled for like 2040, but they're likely to be brought forward as people get more confortable with the idea. Starting with last mile delivery in urban areas, trucks are going electric today. And it's not initially about energy density, it's about the poisons and pollution they emit.
- fooker 4y agoSemi trucks will move 'forward' to electric when the technology becomes available. So far it's not, the state of the art prototypes can not do the required job. Maybe it will be something like fuel cells instead, who knows.
- ZeroGravitas 4y agoAs I said, it's already happening. https://www.volvotrucks.com/en-en/news-stories/press-releases/2022/may/sales-start-for-volvos-heavy-duty-electric-trucks.html https://www.volvotrucks.com/en-en/news-stories/press-release... Green Hydrogen will be part of the answer in the next 5 years or so, but it's not a blocker right now. There's plenty of semi trucks that have tasks that are within the current battery limits.
- LunaSea 4y agoGreen hydrogen is not green besides washing.
- ZeroGravitas 4y agoGreen Hydrogen is going to be a big part of fixing the mess made by fossil fuels. Blue Hydrogen and small Fuel Cell hybrids got pushed harder than they should have been by some oil and gas people, which left a bad taste in many people's mouths but, as long as it's not being used for something that you could do with mains electricity or batteries instead, Green Hydrogen is part of the solution. We need it for making chemicals and fertilizer and as an analog to pumped hydro storage. A view on this from a anti-oil and gas angle is here: https://cleantechnica.com/2021/09/01/cleantech-talk-chemical-engineer-paul-martin-reflects-on-liebreichs-hydrogen-ladder-hopium-part-1/ https://cleantechnica.com/2021/09/01/cleantech-talk-chemical... https://cleantechnica.com/2021/09/03/cleantech-talk-chemical-engineer-paul-martin-discusses-where-hydrogen-will-be-useful-part-2/ https://cleantechnica.com/2021/09/03/cleantech-talk-chemical... Hydrogen cars, no. Hydrogen shipping, maybe. Hydrogen for chemical feedstocks, yes.
- throwaway894345 4y agoThat’s a very bold claim with no support whatsoever.
- LunaSea 4y agoCheck how it is produced.
- throwaway894345 4y ago"Electrolysis from renewable energy" isn't an obvious boogeyman. That's essentially the definition of green hydrogen--maybe you're arguing that someone is selling counterfeit green hydrogen, but that's not an indictment of green hydrogen. In any case, would it kill you to spend a couple sentences explaining what you mean rather than trying to be all mysterious and making us guess?
- aperson_hello 4y agoGreen hydrogen right now is green washing. Clean hydrogen production is easy to do, but is more expensive than dirty hydrogen production. When that equation changes (which it will do eventually), clean hydrogen production will win out and at that time, we'll need infrastructure to support it. The question is just: when will it happen?
- aperson_hello 4y agoI'd claim it's all about economics. There are small trucks commercially available for the first time now that can move the volume of packages required. And they're cheaper to operate than ICE trucks, so companies are obviously and quickly switching. The marketing points are frosting on the equation!