Certainly H2 makes no sense for most transportation or most heating/cooking. But it appears to have potential for long term energy storage (days, weeks, or months), and for long range aviation and rocket fuel, although in the latter cases it would probably be better to combine H2 from electrolysis with CO2 captured from the air, to make CH4 using the Sabatier process. CH4 is far less bulky than H2 and it would be much easier to convert long range aircraft to it rather than H2, and Elon Musk is using CH4 in his revolutionary Starship. When you burn this type of CH4 you do put CO2 into the atmosphere, but exactly the same amount that you originally took out of the atmosphere.
On Sat, May 8, 2021 at 12:24 PM (-Phil-) via EV <[email protected]> wrote: > From what research I've done, I believe BioFuels are a better stop gap than > H2. > > H2 is a boondoggle. I just can't find a use case that makes sense, it's > poor systemic efficiency, and super-high infrastructure cost take it out of > consideration. > > We'll still need some kind of energy dense solution for things like air > travel. Biofuels can at least be carbon neutral, as you can close the > carbon cycle. It will take a long way to get there of course, as the > complete biofuel production cycle is also still a carbon intensive > operation, but this can be fixed over time. > > To get to electrification quicker, I still think some hybridization is > good. I'm part of this project: https://youtu.be/TuLE7CcSvRc > It is a good way to get more electric cars on the road faster. The lower > cost and battery size mean more cars in the fleet faster, and the same > battery supply that can build one Tesla Model 3 or Y can now build more > than 4 cars instead of just one. Unlike H2, this can be implemented now, > and can allow biofuels to be phased in without any new tech on the car or > distribution infrastructure side. Also removes the immediate requirement > to build more fast charging infrastructure while still allowing long > distance travel. > > On Sat, May 8, 2021 at 6:09 AM Peri Hartman via EV <[email protected]> > wrote: > > > Resending... didn't go through. > > > > << Annoyed by leaf blowers ? https://quietcleanseattle.org/ >> > > > > ------ Original Message ------ > > From: "Peri Hartman" <[email protected]> > > To: "Electric Vehicle Discussion List" <[email protected]> > > Sent: 07-May-21 6:27:44 PM > > Subject: opinion article on hydrogen > > > > >This article claims that producing hydrogen will remain too expensive > and > > therefore people will continue to choose to use natural gas if there > isn't > > an electric alternative. It also mentions the poor efficiency of > producing > > it. > > > > > >Using hydrogen fuel risks locking in reliance on fossil fuels, > > researchers warn > > > > > > https://www.theguardian.com/environment/2021/may/06/hydrogen-fuel-risks-reliance-on-fossil-fuels > > > > > >... > > >Fuels produced from hydrogen can be used as straight replacements for > oil > > and gas and can be low-carbon, if renewable electricity is used to > produce > > these “e-fuels”. However, the research found that using the electricity > > directly to power cars and warm houses was far more efficient. > > >... > > >The analysis estimated that hydrogen-based fuels would be very expensive > > and scarce in the coming decade. Therefore, equipment such as > > “hydrogen-ready” boilers could end up reliant on fossil gas and continue > to > > produce the carbon emissions driving global heating. > > >... > > >The research, published in the journal Nature Climate Change, calculated > > that producing and burning hydrogen-based fuels in home gas boilers > > required six to 14 times more electricity than heat pumps providing the > > same warmth. This is because energy is wasted in creating the hydrogen, > > then the e-fuel, then in burning it. For cars, using e-fuels requires > five > > times more electricity than is needed than for battery-powered cars. > > >... > > >Daryl Wilson, the executive director of the global, industry-backed > > Hydrogen Council, said hydrogen could become the most competitive > > low-carbon solution for some sectors by 2030, such as long-haul trucking > > and steel. > > >... > > > > > >----------- > > > > > >Peri > > > > > ><< Annoyed by leaf blowers ? https://quietcleanseattle.org/ >> > > > > _______________________________________________ > > 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 > > > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: < > http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20210508/347ee47d/attachment.html > > > _______________________________________________ > 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 > -- Larry Gales -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20210508/487cc0eb/attachment.html> _______________________________________________ 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
