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  Reply # 1985499 29-Mar-2018 16:49
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An interesting perspective on where Tesla is going wrong in scaling production: Musk's obsession with automation is leading him to repeat other manufacturers mistakes.

 

https://www.stuff.co.nz/business/world/102700612/the-robots-are-killing-tesla





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  Reply # 1986944 1-Apr-2018 19:32
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1,900 HP Rimac Concept Two EV shakes the earth at the 2018 Geneva Motor Show

0-60MPH or 0-100 KPH less than 2 seconds



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  Reply # 1988856 5-Apr-2018 16:29
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Re-posting on behalf of Dee West (chargenet.co.nz) from her Instagram post yesterday. She gave me permission for re-post. Admin - you may wish to relocate to appropriate thread, but I assume those who are reading this thread are really interested in EV and may be of better fit, quote:

 

"I work with the smartest, kindest, funniest people, in a rewarding growth sector, doing fun and amazing collaborative projects, and traveling all over NZ and the word. And we are hiring! Office manager, executive assistant (for Dee), and programmers with strong Java and/or Web Frontend and/or Go language skillllllz. Also project/general manager but hope that’s filled if I can get a moment to arrange interviews with her!!! Message me if you or someone is or knows someone and we can start a conversation", end of quote.

 

I am not affiliated with chargenet.co.nz but I know how important that could be for someone who might be in a job search right now and would perfectly fit those roles, but otherwise would never come across that post on Instagram.

 

 





Toyota / Lexus Hybrid and EV Battery Expert Battery Test & Repair 

 

 


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  Reply # 1988907 5-Apr-2018 17:06
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kingdragonfly: 1,900 HP Rimac Concept Two EV shakes the earth at the 2018 Geneva Motor Show

0-60MPH or 0-100 KPH less than 2 seconds

 

As long as they keep it away from Hampster they will be fine.........




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  Reply # 1989210 6-Apr-2018 08:40
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MikeAqua:

 

An interesting perspective on where Tesla is going wrong in scaling production: Musk's obsession with automation is leading him to repeat other manufacturers mistakes.

 

https://www.stuff.co.nz/business/world/102700612/the-robots-are-killing-tesla

 



Reading him, I think he thinks he can get past those mistakes. 

He might. He's launching rockets for $90 million a pop....vastly cheaper than anyone else. They said that couldn't be done. He's doing it.  

The big automakers have very powerful reasons for not pushing through on automation. Politically it's dicey......just for starters. 





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  Reply # 1989233 6-Apr-2018 09:15
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Tesla is finally making enough Model 3 cars that it is now the top-selling battery-only electric car in the US. 

They are up to a rate of over 8,000 cars / month now, and hopefully can sustain that and improve on it. 

(Beware the large video ad at the top of the page.....)

Tesla Model 3 is now the top-selling EV in the US





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  Reply # 1995664 13-Apr-2018 17:29
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  Reply # 1995769 13-Apr-2018 22:23
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kingdragonfly: Story about wireless charging, claiming 93% efficiency

http://www.thedrive.com/tech/19995/wireless-electric-car-charging-is-coming-and-it-could-help-stabilize-the-power-grid

And giant slot car track

https://newatlas.com/eroadarlanda-sweden-electric-highway/54197/

 

In a few years the batteries will be big enough you'll only charge once / week or on a trip from Auckland to Wellington you'd make a single charging stop for 20 mins on the way. 

You can already do this today if you bought a Tesla Model S - drive to Taupo to the Supecharger....and then on to Wellington. 

Range anxiety won't be. 





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  Reply # 2006348 2-May-2018 06:39
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Something on GCC caught my eye; from an abstract on a story about a hybrid-state electrolyte:

 

However, despite considerable interest in solid-state batteries, many challenges still remain in both manufacturing and fundamental understanding of this technology.

 

… Developing hybrid electrolyte is now considered to be a new strategy to overcome the above challenges.

 

http://www.greencarcongress.com/2018/05/20180501-xu.html

 

I'm not that smart; can someone tell me what higher voltages mean? Presumably quicker charge/discharge? 

 

The main thing about that comment though, is that it implies we are still grappling with the basics of solid-state batteries. It seems like the future may be more efficient Lithium-X batteries that enable smaller battery packs with better charging tech, as there is a lot of emphasis going on charging; e.g. Porsche/VW network, BMW ix3 150kw charging, etc. 


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  Reply # 2006382 2-May-2018 08:49
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I'm not an electrician .... but isn't it amperage that gives the "umph", not voltage.

For example I believe you could be killed by 60 volts, with enough amperage.




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  Reply # 2006392 2-May-2018 09:15
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kingdragonfly: I'm not an electrician .... but isn't it amperage that gives the "umph", not voltage.

For example I believe you could be killed by 60 volts, with enough amperage.

 

Short answer is both - power is the product of voltage and current (V x I) - so 1000 watts could be 50 amps at 20 volts or 1 amp at 1000 volts.  Higher voltages mean you can use thinner conductors because less current is flowing, but means you are working with dangerous voltages and need better insulation.

 

I find the statements such as "it's the current that kills, not the voltage" amusing.  There's this thing called Ohm's law which states that the current through a conductor is proportional to the voltage (V=IR, or I=V/R) - so if your body has a given resistance, you'll only receive sufficient current to do harm if there is enough voltage to generate it.  You could have the biggest current source in the world at say 12v, and it would be perfectly safe to hold the terminals because 12v is not sufficient to generate any dangerous current through your body.  Conversely, a high voltage source which is not capable of generating much current (eg a low-power electric fence) will give you a painful shock but not do any harm - the current is limited by the power source


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  Reply # 2006540 2-May-2018 13:34
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GV27:http://www.greencarcongress.com/2018/05/20180501-xu.html

 

I'm not that smart; can someone tell me what higher voltages mean? Presumably quicker charge/discharge? 

 

I get 2 things out the article.

 

1) The main thing is that the batteries are less reactive when damaged (ie they don't burst into flames), improving battery safety.

 

2) The secondary thing is that the cells have a higher voltage. All other things being equal, this would mean an improvement in energy the cell could deliver/hold of maybe 25 or 30%, however they touch on some disadvantages without really expanding, so all other things might not actually be equal.

 

Edit Spelling (why can't I see those until after pressing the Post button?)

 

 


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  Reply # 2006904 3-May-2018 09:18
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Some good news at Tesla.  Revenue is up, cash burn is down (but still high). 

 

But still at <50% of the target production rate for Model 3s.





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  Reply # 2009582 7-May-2018 20:28
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Just saw the Renault Twizy on topgear (old episode - race it in St Petersberg)   60mile range, max 50 mile speed.

 

They are doing something very microsoft. You don't own your battery but have to pay 45 pounds per month and are only allowed to do 4500 miles per 12 months otherwise you get charged 11.95 pounds per 100 miles over usage.

 

To my way of thinking that sets a dangerous president - like office 365 you dont own your software and lose control of your own vehicle usage. How long before you dont own self drive, cars and not just batteries. The more fancy stuff in cars the more likelyhood of it going this way.

 

 

 

https://www.renault.co.uk/vehicles/new-vehicles/twizy.html





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  Reply # 2009696 8-May-2018 08:22
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I looked at the Twizzy a couple of time, but the lack of doors, slow top speed, and very high price put me off.

I like this vehicle, because it could be used as-is in NZ, classified as a "Le 2" vehicle by NZTA

https://nzta.govt.nz/vehicles/vehicle-types/motorcycles-and-mopeds/


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