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Toyota’s hydrogen-powered Mirai has experienced rapid depreciation

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Re: Toyota’s hydrogen-powered Mirai has experienced rapid depreciation

#132

Earlier quoted context omitted.

It’s horrible to work with - dangerous, embrittlement issues etc., and very energy intensive to compress into very heavy cryogenic storage containers…

> dangerous It is actually less dangerous than other fuels, for the simple reason that it is extremely light and buoyant. A gasoline fire is bad, because the gasoline stays where it is until it fully burns. A hydrogen fire is less bad, because it will tend to move upwards.

That's assuming the hydrogen is just loose in the area, like it'd been released from a balloon in a chemistry classroom. That amount of hydrogen is extremely small, from an energy standpoint. Equivalent to a teaspoon of gasoline or so.

If you assume a realistic fuel capacity for a hydrogen vehicle, the hydrogen tank will be both much larger than a gas tank and the hydrogen will be under extreme pressure. A tank like that in your car would be extremely dangerous even if it were filled only with inert gas.

Re: Toyota’s hydrogen-powered Mirai has experienced rapid depreciation

#133
post #125

Earlier quoted context omitted.

> Hydrogen is such a terrible idea it was never getting off the ground. It's coming from Toyota because Toyota can't wrap its head around not making engines. Ironically, the place hydrogen might work is airplanes where the energy density of batteries doesn't work.

> It's coming from Toyota because Toyota can't wrap its head around not making engines. Of course they can. Toyota sells BEVs. As time goes on BEVs will become a greater percentage of their sales.

Toyota sells bad EVs and was the last OEM to offer one. It’s the most anti-EV OEM by far and engages/engaged in the most EV FUD.

Re: Toyota’s hydrogen-powered Mirai has experienced rapid depreciation

#134

I don't think hydrogen will ever be a thing for personal cars. Apart from the abysmal "well to wheel" efficiency it's also just such a hassle to create a fuel network for it. Gasoline is bad enough but a gas that will just leak away whatever you do seems like a stretch. It is just so much simpler with electricity. Pretty much every gas station already has it. No driving it around with trucks. Just maybe once install…

> It is just so much simpler with electricity. Yet the market still thinks differently. Lots of countries still keep subsidizing EV despite them already being mature technology for such a long time. We didn't have to subsidize the smart phone to make it successful, we shouldn't have to subsidize electric cars either.

We also wouldn't need to if environmental externalities were costed into petroleum prices.

Re: Toyota’s hydrogen-powered Mirai has experienced rapid depreciation

#135
post #125

Earlier quoted context omitted.

> Hydrogen is such a terrible idea it was never getting off the ground. It's coming from Toyota because Toyota can't wrap its head around not making engines. Ironically, the place hydrogen might work is airplanes where the energy density of batteries doesn't work.

> It's coming from Toyota because Toyota can't wrap its head around not making engines. Of course they can. Toyota sells BEVs. As time goes on BEVs will become a greater percentage of their sales.

The bZ4X? 10+ years after the Nissan Leaf?

Re: Toyota’s hydrogen-powered Mirai has experienced rapid depreciation

#136

Earlier quoted context omitted.

> dangerous It is actually less dangerous than other fuels, for the simple reason that it is extremely light and buoyant. A gasoline fire is bad, because the gasoline stays where it is until it fully burns. A hydrogen fire is less bad, because it will tend to move upwards.

Hydrogen mixed with air has a very wide range of concentrations where it is explosive. It accumulates inside containers or just the roof of the car… where the passengers are. It takes just one lit cigarette for it to go boom.

And it burns really hot

Re: Toyota’s hydrogen-powered Mirai has experienced rapid depreciation

#137
post #107

Earlier quoted context omitted.

Besides being expensive to generate unless you already happen to have an electrolysis plant handy, hydrogen is awkward and hazardous to store. Once generated, it costs yet more energy to liquefy, and then it seeps right through many common metals, weakening them in the process. It's just not a good consumer-level energy source, and nobody could figure out why Toyota couldn't see that. Interestingly, liquid hydrogen i…

Remember that China briefly embargoed Japan for rare earth metals in 2010, and Toyota launched the Mirai in 2014. My theory was that it was developed as a national fallback for Japan in case that embargo continued or got worse. Think 1930s Volkswagen. Anyone can comment on that?

Japan went heavy into hydrogen for a couple of decades ago. The only reason we are even talking about hydrogen passenger vehicles now is because Japan thought it was the future, they made a mistake.

Re: Toyota’s hydrogen-powered Mirai has experienced rapid depreciation

#138
post #89

Earlier quoted context omitted.

$15,000 worth of fuel card sounds generous until you find that hydrogen stations have jacked up prices to $36/kg.

still means nothing, what is the mileage or $/mi there?

Apparently 1kg of hydrogen is about 60 miles range, which seems like a lot, but apparently fuel cells are that good.

Currently hydrogen fuel if you can get it is about 15 quid a kilo in the UK, giving a tank range of around 400 miles for £80. This makes it a little more expensive than diesel, considerably more expensive than petrol, and roughly the same price as electric.

By comparison Autogas LPG is around 92p/litre (or about £1.80 per kilo) and in a very large heavy 4.6 litre Range Rover you get around 250-300 miles for your £80 tankful, depending on how heavy your right foot is.

Re: Toyota’s hydrogen-powered Mirai has experienced rapid depreciation

#139
post #29
post #20

Earlier quoted context omitted.

this is the case while they're in the hype building phase, when people are paying attention if hydrogen even gained widespread adoption, it would be mass produced via steam reforming of natural gas (which is why the oil majors are the ones desperately pushing it)

Natural gas vehicles make way more sense than hydrogen. But they didn't survive in the (US) market outside specific fleet applications. Turns out compressed gas fuel is a big PITA.

They were popular in Thailand and Cambodia for awhile due to domestic natural gas reserves. But after those wells began to dry up Thailand at least decided EVs were the future instead.

Re: Toyota’s hydrogen-powered Mirai has experienced rapid depreciation

#140

I don't think hydrogen will ever be a thing for personal cars. Apart from the abysmal "well to wheel" efficiency it's also just such a hassle to create a fuel network for it. Gasoline is bad enough but a gas that will just leak away whatever you do seems like a stretch. It is just so much simpler with electricity. Pretty much every gas station already has it. No driving it around with trucks. Just maybe once install…

> It is just so much simpler with electricity. Yet the market still thinks differently. Lots of countries still keep subsidizing EV despite them already being mature technology for such a long time. We didn't have to subsidize the smart phone to make it successful, we shouldn't have to subsidize electric cars either.

> we shouldn't have to subsidize electric cars either.

Smart phones were subsidised, just less obviously. Much of the fundamental research into the radio systems was done by government labs, for example.

Not to mention that governments provide maaaaasssive subsidies to the entire fossil fuel industry, including multi-trillion dollar wars in the middle east to control the oil!

Look at it from the perspective of pollution control in cities. China just invested tens of billions - maybe hundreds — into clearing out the smog they were notorious for. Electric vehicles are a part of the solution.

The alternative is everyone living a decade less because… the market forces will it.

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