Inefficient energy storage device? How so?
Compared to batteries, they can store energy much longer. Batteries are in
their sweet spot for energy storage for a number of hours, hydrogen for longer
periods. Batteries are for small scale storage, hydrogen can be used up to grid
Musk comments that it's more efficient to directly charge a battery. Maybe
that's true, but there are a long list of advantages and disadvantages of
hydrogen/battery hybrids AND batteries-only. So use the correct tool for the
job. For the auto, it depends what's best for you. To say otherwise is to
suggest everyone should buy a compact, or an SUV, or ...
I think *that's* pretty silly.
Sent from my iPhone
> On Oct 30, 2017, at 3:45 PM, paul dove via EV <firstname.lastname@example.org> wrote:
> Actually, Elon said that hydrogen was an inefficient energy storage device.
> In addition, it has many technical drawbacks.
> I just think that they're extremely silly....it's just very difficult to make
> hydrogen and store it and use it in a car," Musk said. "If you say took a
> solar panel and use that...to just charge a battery pack directly, compared
> to split water, take hydrogen, dump oxygen, compress hydrogen...it is about
> half the efficiency."
> He also added that you can't tell when hydrogen is leaking and that it's
> extremely flammable. When it catches fire, hydrogen has an invisible flame.
> Not to mention hydrogen embrittlement and corrosion.
> Sent from my iPhone
>> On Oct 29, 2017, at 11:37 AM, Michael Ross via EV <email@example.com> wrote:
>> I believe Musk has only slammed H2 in the context of EVs. There certainly
>> is a great public misunderstanding that H2 can be a source of energy which
>> it absolutely is not, rather than its true role as a storage and transport
>> medium. I suspect this misunderstanding gave momentum to Toyota's decision
>> to work on HFCVs.
>> A colleague of mine did a very nice proposal for his masters project in
>> mechanical engineering, he was exploring how could we store renewable
>> energy to smooth out its circadian oscillations and not waste its
>> potential. He was trying to do this at a continental or global scale.
>> I will also note that he had no ax to grind or prejudice. He was an early
>> adopter of EVs, buying a 1st generation Leaf back when nobody did stuff
>> like that east of CA and the only Tesla was a Roadster..
>> He concluded that building enough batteries at this scale was not a
>> workable solution. Too much material mined and the resultant ruination of
>> environment and habitat, etc.
>> At this scale hydrogen - even given the inefficiencies - looks very good.
>> You can make really large tanks to store hydrogen, pipe it, and dispense it
>> with far less collateral damage than with batteries. Once you have it
>> liquefied you could find some utility for it in vehicles. But I think it
>> would be more prominent used as an alternative to damming up rivers for
>> pump storage, nuclear waste generating plants, digging multitudinous holes
>> for copper, aluminum, cobalt, manganese, lithium, polyesters for
>> electrolytes, and plastics for electrode separators,. and so on. When you
Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)