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>the overall change in emissions is not better This is false. The emissions associated with producing an EV are on the order of 15 tonnes CO2 equivalent, vs. 1

by scythe 6y ago

>the overall change in emissions is not better This is false. The emissions associated with producing an EV are on the order of 15 tonnes CO2 equivalent, vs. 10 tonnes CO2 equivalent for a fuel combustion vehicle (FCV): http://tasri.org/upLoad/down/month_1710/201710242243229582.pdf http://tasri.org/upLoad/down/month_1710/201710242243229582.p... Meanwhile the emissions associated with gasoline vary but are at least 0.25 kg per mile (EPA average 0.4 kg/mile): https://nepis.epa.gov/Exe/ZyNET.exe/P100JPPH.TXT?ZyActionD=ZyDocument&Client=EPA&Index=2011+Thru+2015&Docs=&Query=&Time=&EndTime=&SearchMethod=1&TocRestrict=n&Toc=&TocEntry=&QField=&QFieldYear=&QFieldMonth=&QFieldDay=&IntQFieldOp=0&ExtQFieldOp=0&XmlQuery=&File=D%3A%5Czyfiles%5CIndex%20Data%5C11thru15%5CTxt%5C00000011%5CP100JPPH.txt&User=ANONYMOUS&Password=anonymous&SortMethod=h%7C-&MaximumDocuments=1&FuzzyDegree=0&ImageQuality=r75g8/r75g8/x150y150g16/i425&Display=hpfr&DefSeekPage=x&SearchBack=ZyActionL&Back=ZyActionS&BackDesc=Results%20page&MaximumPages=1&ZyEntry=1&SeekPage=x&ZyPURL https://nepis.epa.gov/Exe/ZyNET.exe/P100JPPH.TXT?ZyActionD=Z... Over the lifetime of the car -- at least 100000 miles -- that's 25 tonnes at a bare minimum. But EVs last longer than FCVs, so we should increase the range to at least 200000 miles and 50 tonnes CO2 equivalent (or 80 for a typical car), where EVs start to pull away substantially. Furthermore, the emissions associated with EV producing depend in part on fuel-derived electricity used in manufacturing, which can be reduced dramatically by switching to nonfuel electricity production. Overall, EVs represent a massive decrease in pollution. However, the most important things to solve are the problems we haven't solved: principally grid-level electricity storage that permits a higher fraction of electricity production from renewable sources. EVs, wind turbines and photovoltaics by contrast are technologies that are already applied in practice.

reitzensteinm 6y ago
I am very sceptical of the claim that EVs will have a higher lifetime than ICEs. The latter reach end of life in the Western world due to a lack of desirability, not because of the maintenance burden. A 20 year old EV will still smell bad, have gunk you can't clean all over the surfaces, not communicate with your phone etc. Maybe it will be true, but I don't think you should count your chickens just yet, certainly not by a factor of 2.
- jccooper 6y ago
  People sell cars because they don't like them. But they crush cars because they become too expensive to fix. If your smelly 20 year old EV is still rolling someone will buy it for a couple hundred bucks and drive it until it fails. How the claims of superior maintainability for EVs vs ICs turns out, well, we'll see. There's an awful lot on an IC car that can go wrong that will send a well-used one to the junkyard, since repairs are so expensive. But there's also a lot that are kept on the road by driveway mechanics that have more time than money... and the EV future will be less friendly to that. I can do valve guides in my driveway, but I'm not replacing battery cells.
  - Ccecil 6y ago
    It just takes a new type of mechanic. I personally would have no complaints about swapping batteries, fixing electronics or upgrading/updating accessories but I also come from a different level of training. To me it appears as easy to remove an entire EV motor as it is to change a rear differential (electrical safeties aside). Mechanics for decades have been complaining that "you can't fix these new computerized cars" when mechanically they are very similar to what has been produced for half a century, sensors and electronics just allow you (when properly working) to set and adjust on the fly...making engines more efficient and smoother running. The "new mechanic" will be required to know most (if not all) of the same things as those of the past but will also be required to have an understanding of electronics repair and safety. I suspect due to things like microprocessor kits, robotics and such being more popular at a younger age that this will be a non issue. Sure...the current batch of mechanics may have issues but the next generation will (could?) consider it common knowledge. I am sure in history someone complained that these automobiles can't be fixed as easy as replacing a horse. That is the issue with new tech...if you only know old...it seems like black box magic.
    - ChuckNorris89 6y ago
      The problems independent mechanics have with new "computerized cars" is the expensive and sometimes unavailable DRM protected HW and SW tools that you need to perform any operations on the electronics which are usually only made available to authorized dealers by the auto manufacturers. The "new mechanic" for the EV era will not exist if auto manufacturers make every digital tool proprietary and unavailable outside the dealer network, with phone-home to HQ for authorization.

by scythe 6y ago

reitzensteinm 6y ago

I am very sceptical of the claim that EVs will have a higher lifetime than ICEs. The latter reach end of life in the Western world due to a lack of desirability, not because of the maintenance burden. A 20 year old EV will still smell bad, have gunk you can't clean all over the surfaces, not communicate with your phone etc. Maybe it will be true, but I don't think you should count your chickens just yet, certainly not by a factor of 2.

jccooper 6y ago
People sell cars because they don't like them. But they crush cars because they become too expensive to fix. If your smelly 20 year old EV is still rolling someone will buy it for a couple hundred bucks and drive it until it fails. How the claims of superior maintainability for EVs vs ICs turns out, well, we'll see. There's an awful lot on an IC car that can go wrong that will send a well-used one to the junkyard, since repairs are so expensive. But there's also a lot that are kept on the road by driveway mechanics that have more time than money... and the EV future will be less friendly to that. I can do valve guides in my driveway, but I'm not replacing battery cells.
- Ccecil 6y ago
  It just takes a new type of mechanic. I personally would have no complaints about swapping batteries, fixing electronics or upgrading/updating accessories but I also come from a different level of training. To me it appears as easy to remove an entire EV motor as it is to change a rear differential (electrical safeties aside). Mechanics for decades have been complaining that "you can't fix these new computerized cars" when mechanically they are very similar to what has been produced for half a century, sensors and electronics just allow you (when properly working) to set and adjust on the fly...making engines more efficient and smoother running. The "new mechanic" will be required to know most (if not all) of the same things as those of the past but will also be required to have an understanding of electronics repair and safety. I suspect due to things like microprocessor kits, robotics and such being more popular at a younger age that this will be a non issue. Sure...the current batch of mechanics may have issues but the next generation will (could?) consider it common knowledge. I am sure in history someone complained that these automobiles can't be fixed as easy as replacing a horse. That is the issue with new tech...if you only know old...it seems like black box magic.
  - ChuckNorris89 6y ago
    The problems independent mechanics have with new "computerized cars" is the expensive and sometimes unavailable DRM protected HW and SW tools that you need to perform any operations on the electronics which are usually only made available to authorized dealers by the auto manufacturers. The "new mechanic" for the EV era will not exist if auto manufacturers make every digital tool proprietary and unavailable outside the dealer network, with phone-home to HQ for authorization.