Summary
- Nissan’s pride and denial hindered merger talks, sources say
- Honda pushed Nissan for deeper cuts to jobs, factory capacity, sources say
- Nissan unwilling to consider factory closures, sources say
- Honda’s proposal to make Nissan a subsidiary caused tensions, sources say
I think hydrogen has a future, but more for long haul trucking than personal cars. The general idea is to generate a ton of solar power during the day and use the excess to produce hydrogen, and then use the hydrogen to fuel heavy equipment, trucks, and cover for low solar production days.
This solves many of the issues with hydrogen:
That way though you would have to haul around the electrolyzing equipment with you which seems redundant and it’s pretty heavy. I’m not sure that would necessarily work.
Also in that scenario you would have to keep the water on board so that you could electrolyze it again. That adds even more weight. A molecule of water weighs 18 times more than a single hydrogen atom so every single time you run this process your vehicle suddenly gets massively heavier.
Hydrogen remains a solution desperately in search of a problem.
If your aim is to generate locally, why not just use batteries? They’re cheaper, more efficient, and more reliable. Why have the lossy and very high maintenance electrolysis and hydrogen storage/transfer process involved?
Battery-powered vehicles require an unreasonable amount of water to control a fire. 1 burning Tesla needs 1 fire truck of water, so imagine what a bigger vehicle would need.
Are they cheaper? Even over 1M miles or whatever a truck engine is expected to go? And for running a warehouse overnight? I find that hard to believe.
But even if true, you need to take range into account. Hydrogen cars get better range than comparable BEVs, and that would surely add up for a truck hauling a massive load. And as hydrogen scales up, it’ll get cheaper. It’s currently a bit more expensive than gas (about 3-4x), but that’s with hydrogen transported from some plant somewhere. If it’s locally generated from solar, it’ll probably be quite a bit cheaper.
Yes, significantly so. Hydrogen fuel cells have a much shorter lifespan and higher manufacturing/replacement cost than lithium ion batteries. The compressed gas tanks are also very expensive and have a limited lifespan (albeit a relatively long one, compared to the fuel cells).
Market rate hydrogen is currently about as cheap as it’s possible to get, because it is almost exclusively from fossil fuel sources which are gradually winding down.
Locally produced electrolysis hydrogen suffers from very low efficiency rates; about 2/3rds of the power used to produce the hydrogen is lost in the process. Assuming you don’t have an enormous overabundance of power being generated, it’s more efficient to store the power locally in batteries (which don’t have to be lithium ion if it’s for static storage; other chemistries become competitive if they don’t need to move around) than it is to store it as hydrogen. And if you’re generating a huge overabundance of power such that throwing 2/3rds of it away seems sensible, in most cases the question would be why you don’t make a grid connection and feed in anyway (extreme remote locations notwithstanding).