this post was submitted on 14 May 2024
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I know Toyota is still ragging on EVs because they invested a lot into hydrogen tech and want that to be the next big thing instead. But I didn't know Honda, Mazda and Suzuki also under-invested.
It isn't about development investment. It's about engines. Engines have long tail after sales profits from maintenance and parts. It's why Toyota recently unveiled their ammonia fueled engine and declared electric vehicles are dead. Electric engines remove a ton of after sales profits in the form of servicing, spare parts and upgrades.
Honda is full-on for hydrogen as well.
Toyota may be cranky about EV's beating out hydrogen, but they're the company claiming to have invented some new solid state battery that has an 800 mile range and can charge 80% in ten minutes on a fast charger, which would be huge for the EV market.
i hear it has to do with the fact they don't have much space for solar?
I don't really understand the hatred for hydrogen honestly.
It seems like a great tech. There are huge hydrogen facilities being built in Western Australia to crack hydrogen from sea water.
I think Toyota only promoted hydrogen because they knew it would give internal combustion more time. Toyota are really good at internal combustion engines
Presently yes. It's a by-product of natural gas production. There hasn't been much of a market for it. In Australia there's $230b of green hydrogen production projects on the table. Just one of which in Western Australia is going to produce 3.5m tonnes of green hydrogen per year.
Yes but electricity transport is very wasteful. There's plenty of sun in Western Australia, falling in desert areas where land for solar arrays is practically free.
There's problems yes, but the industry believes these are solvable problems. Toyota is the largest vehicle manufacturer in the world. Japan has several other very large vehicle manufacturers. They're all betting on hydrogen. They've invested $2.3b in a hydrogen supply chain which is already shipping hydrogen.
Hydrogen doesn't provide power through "internal combustion". A hydrogen fuel cell produces energy by running hydrogen over a catalyst which produces water and electrical energy.
I'll layer on to the other replies which are spot on...
One reason I've soured on hydrogen is that it's overall much less efficient than battery as an energy storage mechanism.
This is a really in depth article about a study that found that "well to wheel" efficiency of battery EVs was 70-80% and with hydrogen it's 25-30%.
I was initially excited about hydrogen as energy storage for renewable sources, but battery tech has improved and is improving.
Also, one of the major advantages of a BEV for me is the ability to charge at home, possibly from energy generated by my own panels. Even if there were solutions for me to generate my own hydrogen, I'd rather lose 20-30% of that energy with a BEV than lose 70-75% with a FCEV.
I've provided a rebuttal for the other replies which you might find interesting.
In a scenario where you're considering using roof-top solar to produce hydrogen for your car then yes, the inefficiency of cracking hydrogen from water makes it unappealing.
The thing is, I don't think most of the world has access to roof-top solar and the portion that does will diminish as population and population density increases.
If you consider for example this project in Western Australia covering 15,000km2 it makes a lot more sense. The land (and associated sun light) is practically free. Hydrogen is a far more cost effective method of energy storage to get the energy from middle-of-nowhere-west-aus to market.
I guess one way to look at it is that hydrogen is a better option if the cost of the solar energy is less than a third of what it would be if you produced it nearby.
Counterpoint, most of the world does not have access to "middle of nowhere" regions with lots of sunlight, that is just Australia and a few places near major deserts.
If only there was some way we could transport energy from these areas of the world with cheap land and plentiful sunlight to those areas where the energy was required.
Yeah, ideally a way that doesn't leak out of pretty much anything like hydrogen does.
Embrittlement is a problem but it can be mitigated with careful selection of materials and ceramic coatings et cetera.
It probably has to do with some of the engineering problems with containing hydrogen.
It definitely has a lot to do with influential people bandwagoning onto Elon Musk et al. trashing EVs
Every tech has problems.
"Oh we couldn't possibly make an electric vehicle because there's nowhere to recharge it"
There are problems storing hydrogen but we've been working on mitigating those problems.
Australia has $230b worth of hydrogen projects on the board. Do you think no one involved in any of those projects has realised that it's not possible to store hydrogen?
You say that as if it is completely ridiculous but have you seen how many companies jumped onto impractical technologies like the hyperloop or self-driving cars or even replacing half their workforce with LLM-based AIs?
Who jumped into the hyperloop?
Self driving cars are going to be worth infinite money. Great investment.
Sure some companies were over-exuberant about LLMs, but not to the same scale of national infrastructure we're talking about.
Failed investments are not evidence that all investments will fail, but large investments are an indicator of economic viability.
No I'm not thinking about that.
I'm just trying to reason between public sentiment and over here, trying to say that public sentiment has less to do with actual technical viability and more to do with random comments from influential people.
There are actually, many directions in which people are trying to find ways to make the H~2~ storage viable for specific applications..