I like that hydrogen ladder graphic, nice way of communicating things it is good and bad for. I will say though, If we had (or do) invested more in nuclear power, thermochemical production of hydrogen in nuclear plants could bring overall efficiency closer to to that enjoyed by BEVs (by improving power plant efficiency rather than by improving car efficiency) but that’s just a pipe dream at this point.
Oil sector is lobbying for inefficient hydrogen cars to delay electrification
Submitted 1 year ago by bot@lemmy.smeargle.fans [bot] to hackernews@lemmy.smeargle.fans
Comments
Repelle@lemmy.world 1 year ago
Eheran@lemmy.world 1 year ago
They can not be as efficient as a BEV, even when the hydrogen is produced with 100 % efficiency.
Repelle@lemmy.world 1 year ago
That is absolutely true. But if the hydrogen production increases the power plants overall efficiency from 30% to 50% (estimates are in that realm) then the overall efficiency of the system is competitive, since as compared to current nuclear generation the efficiency of the hydrogen production is greater than 100% as we’re using energy that is waste in the current system.
Of course, using electricity in that model is still more efficient so long as the markets for better uses of hydrogen aren’t saturated, but if we went all in, then it might be possible for it to be the case.
jet@hackertalks.com 1 year ago
If we assume hydrogen is 100% efficient, the one improvement over battery electric vehicles, is no need for a battery. I know there’s a lot of debate about how recyclable batteries are, but we have limited global resources to produce batteries at scale.
HerrBeter@lemmy.world 1 year ago
For years now. When will the madness end
grue@lemmy.world 1 year ago
Electric bicycles can charge just fine from a normal 15A outlet.
Remember that the real problem is the car-dependency itself, folks, and the real solution is fixing the zoning code so that origins and destinations can be built closer together without vast wastelands of parking lots between. And I’m not even just talking about the problem of climate change, either: the housing crisis, obesity, microplastics (which it turns out the majority of which come from car tires), and a ton of other problems all have car-dependent zoning as their root cause!
Moneo@lemmy.world 1 year ago
Zoning is just one piece of the puzzle, but I’m with you friend.
Fuck cars.
grue@lemmy.world 1 year ago
It’s true that zoning is just one piece, but I think that a lot of folks don’t fully grasp just how large and important of a piece it is. In fact, few of the other pieces – better transit, separated bike infrastructure, etc. – are viable without sane zoning being implemented first.