161–170 of 279 posts
Earlier quoted context omitted.
I got curious and did the math: US gas pumps do 10 gallons per minute, which give us 0.61 L/s. Density is about 0.7kg/L, energy content is about 46.7 MJ/kg. Multiplying the three we get juuust under 20MJ/s or 20MW or about 80 times more energy than this kind of electric charger
The difference reminds me of the energy efficiency a EV has.
Is this compatible with European charger standards?
Not sure what you mean. The current European superchargers use a Type 2 Mennekes adapter, but the protocol is proprietary. I gather that European Model 3s will have CCS sockets (a superset of pins of Type 2 Mennekes) so they will be able to charge at other networks' stations.
Earlier quoted context omitted.
I got curious and did the math: US gas pumps do 10 gallons per minute, which give us 0.61 L/s. Density is about 0.7kg/L, energy content is about 46.7 MJ/kg. Multiplying the three we get juuust under 20MJ/s or 20MW or about 80 times more energy than this kind of electric charger
Whoa. That is a lot of efficiency with EVs. But then, that electricity, when coming from a coal powered plant means that the overall "earth to wheels" energy efficiency is somewhere around 30%.
This is awesome. I'm particularly happy about the on-route battery warming. Since I can't charge at my apartment, I tend to charge my car in the morning. If it is around freezing temperatures, it will charge at a rate of 0 miles per hour.
Can you speak more to this? Similar situation. Interested in a Tesla but live in an apartment without a station but during winter have well below freezing and sub zero temps. Seems difficult.
He's in Sweden, so it's pretty cold, and he tests a bunch of EV models on a bunch of fast chargers.
It has some of the usual flaws Youtube content does, but he seems a lot more thorough and better informed than most car journalism.
Earlier quoted context omitted.
My local utility seems to offer it, though they prefer that you install a transformer. They also offer 3-phase for residential usage. Yes, this is in the USA. From what I can tell, most likely you'd get 480 volts at 500 amps. There is actually a home not far from me that gets 3-phase. It is hooked up to a commercial-style air conditioning unit (huge house) and has a separate power meter; the home has separate 2-phase…
(I'm going to abuse the hell out of terminology to make this understandable) I'm sure there are some utilities somewhere that will offer you that :) 480 volt at 500 amps is actually fairly reasonable in terms of cable requirements (it only requires 800 kcmil cable, which, while, i'd never want to buy a ton of it, is not completely bonkers). I would be a little surprised if they offer 500 amps though, because that's a…
Or kW with a power factor of 1, but that is (almost) never the case
Looks like 100kw less than already existing non-Tesla 350kw chargers.
Earlier quoted context omitted.
I wonder if one day highways will have wireless power transfer that can meter you as you go.
Germany is building a wired one on A1 (5km length). Overhead contact line for trucks and looks ugly: http://www.thedrive.com/news/13448/germany-to-install-overhe...
No Access
The web page you were trying to visit is not accessible in your country.
Earlier quoted context omitted.
Yeh but you got to hire a good team and he really does that
Then he fires them constantly or frustrates the hell out of them until they quit. Elon is a bad boss.
Plenty of people does not mind working for him.
See this survey
https://insideevs.com/tesla-spacex-employees-confident-elon-...
Earlier quoted context omitted.
Yeh but you got to hire a good team and he really does that
Then he fires them constantly or frustrates the hell out of them until they quit. Elon is a bad boss.