Well, I didn’t saw that batteries were inefficient, but they can be. As far as hydrogen not being efficient or inefficient to produce from electrolysis, again, not a point I made. But what do you consider efficient?
Economical? Okay, it wasn’t clear you meant that. At a 3¢/kWh cost of solar, Plug Power has said that they can produce hydrogen from electrolysis at a cost that is competitive with that of hydrogen made from fossil. I think that number is $1.50/kg. They are building plants right now. They also have said that within a few years they will be cost competitive with diesel. The numbers here are irrelevant to the point, though, and I think take away from it. In terms of being economical, it only has to be competitive with whatever else is being used.(if a bear is chasing us both, I don’t need to be faster than the bear, only faster than you). And the economics can be inclusive of other things, too - storage, space, regulatory requirements, etc.. so don’t get too caught up on specific numbers. And in a nascent technology, those numbers change quickly! So, I gave you numbers, but did they really help? - Mark Sent from my Fuel Cell powered iPhone > On Aug 15, 2021, at 8:32 AM, Peri Hartman via EV <[email protected]> wrote: > > I am very clear: it is not efficient nor economical to produce hydrogen from > electrolysis and it is more efficient and economic to use and store > electricity in batteries than to convert to hydrogen, compress and transport > it, then convert it back to electricity using a fuel cell. > > Peri > > << Annoyed by leaf blowers ? https://quietcleanseattle.org/ >> > > ------ Original Message ------ > From: "Mark Abramowitz" <[email protected]> > To: "Peri Hartman" <[email protected]>; "Electric Vehicle Discussion List" > <[email protected]> > Sent: 15-Aug-21 08:29:29 > Subject: Re: [EVDL] hydrogen isn't green, after all > >> I made several points. You weren’t clear what you didn’t believe. >> >> Let me know and I’ll do my best to address it. >> >> - Mark >> >> Sent from my Fuel Cell powered iPhone >> >>>> On Aug 15, 2021, at 8:09 AM, Peri Hartman via EV <[email protected]> wrote: >>> >>> Mark, it's you who is attempting to make a point. I'm waiting for you to >>> substantiate your point. If you can do that without numbers, that's fine. >>> >>> Peri >>> >>> << Annoyed by leaf blowers ? https://quietcleanseattle.org/ >> >>> >>> ------ Original Message ------ >>> From: "Mark Abramowitz via EV" <[email protected]> >>> To: "Electric Vehicle Discussion List" <[email protected]> >>> Cc: "Mark Abramowitz" <[email protected]> >>> Sent: 14-Aug-21 21:19:00 >>> Subject: Re: [EVDL] hydrogen isn't green, after all >>> >>>> I’m not sure what you want numbers on, but a point can certainly be made >>>> without them, and frequently, numbers can get in the way. _______________________________________________ Address messages to [email protected] No other addresses in TO and CC fields UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub ARCHIVE: http://www.evdl.org/archive/ LIST INFO: http://lists.evdl.org/listinfo.cgi/ev-evdl.org
