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Tesla – Introducing V3 Supercharging

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Re: Tesla – Introducing V3 Supercharging

#231

Post by auiya »

URSpider94 wrote: post #187
kumarvvr wrote: post #121

Earlier quoted context omitted.

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%.

In the USA, outside of West Virginia, the grid tends to be much more low-carbon — at least biased towards natural gas in most places, but with a fair amount of nuclear even in states that claim not to believe in clean energy.

Total US energy consumption by energy source in 2017: https://www.eia.gov/energyexplained/?page=us_energy_home

Re: Tesla – Introducing V3 Supercharging

#232

Post by pkaye »

masonic wrote: post #129
pkaye wrote: post #117

Earlier quoted context omitted.

Its just a underground tunnel that connects some exhibition halls with people movers. I think Elon's company got the lowest bid to do the work.

Sorry, in seeing "Vegas" I assumed that it would be traveling from Vegas to somewhere else , like L.A.

Knowing Elon Musk it is probably best they start on a small project given he is likely to over-commit to things.

Re: Tesla – Introducing V3 Supercharging

#233

Post by gamblor956 »

lemoncucumber wrote: post #16
leesec wrote: post #2

The amount Elon has delivered so far this year alone at Tesla and SpaceX is tremendous then you see a headline where he landed a 50+ million tunneling deal on the side because why not. Staggering.

I'm surprised I haven't read any talk of, or even speculation about the idea of the Boring Company getting involved with the tunneling required for CA's high-speed rail project (for the Pacheco Pass and Tehachapi Mountains segments). My guess is that perhaps very different tunneling technology is required given the geology or something. Or maybe it's just that Elon Musk hates trains and loves cars way too much.

TBC's "innovation" was to make smaller tunnels, which is useful for things that can be done in smaller tunnels but is useless for any mass transit activity because they're simply not large enough.

(TBC's boring machines were previously used to bore utility and sewer tunnels.)

Re: Tesla – Introducing V3 Supercharging

#234

Post by gamblor956 »

URSpider94 wrote: post #195
simonjgreen wrote: post #99

Fantastic tech. However, why do they insist on doing it in a closed proprietary way? Teslas growth is coupled to general EV growth. They can't possibly be arrogant enough to believe they will be the sole supplier of EVs if they win can they? Charging is the number 1 thing holding back adoption right now.

Negotiating with other vendors to support a shared standard is S-L-O-W. By maintaining their own standard, Tesla can move at their own speed. Also, at the moment, Tesla has more long range EV’s on the road in the US than all other companies put together, as well as more Tesla supercharging stalls than all other fast charge stations combined.

Tesla's (new) charging technology is now far behind the (newest) EV charging standards, so it's a double-edged sword.

Re: Tesla – Introducing V3 Supercharging

#235

Post by leesec »

tedivm wrote: post #70
thevardanian wrote: post #34

Earlier quoted context omitted.

But he's the one coordinating it all. Which is impressive. It's often difficult to run a single small business let alone a single large project/company. It's quite outstanding to be able to run multiple of them simultaneously.

He's not exactly coordinating it all himself. I doubt SpaceX would be doing anywhere near as well without people like Gwynne Shotwell.

Totally agree he's not the only person doing great work at his companies. Also really weird to me when people are confident he's not the genius one man band he appears to be, and then immediately point the credit towards another Singular person like Gwynne Shotwell. If we can say it wouldn't be doing great without Gwynne Shotwell, it should also be clear it wouldn't be doing great/even exist without Elon.

Re: Tesla – Introducing V3 Supercharging

#236

Post by tedivm »

leesec wrote: post #235
tedivm wrote: post #70

Earlier quoted context omitted.

He's not exactly coordinating it all himself. I doubt SpaceX would be doing anywhere near as well without people like Gwynne Shotwell.

Totally agree he's not the only person doing great work at his companies. Also really weird to me when people are confident he's not the genius one man band he appears to be, and then immediately point the credit towards another Singular person like Gwynne Shotwell. If we can say it wouldn't be doing great without Gwynne Shotwell, it should also be clear it wouldn't be doing great/even exist without Elon.

You're either shifting the goalposts or are misunderstanding what's being said. No one at all said that Gwynne is "a singular person" who is doing all the work. Instead Gwynne was being used as a counter example to show that Elon isn't the only one working at the company or doing all the organization.

The only issue being discussed was the original assertion that "he's the one coordinating it all", and pointing to a person doing coordinating seems like a great way to prove that wrong.

Re: Tesla – Introducing V3 Supercharging

#237

Post by jve »

lekevicius wrote: post #167
jve wrote: post #146

Earlier quoted context omitted.

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...

I'm getting a wall: No Access The web page you were trying to visit is not accessible in your country. Lithuania (Europe) here. Is this GDPR thing or something more?

No problem from Latvia. But there are plenty of articles if you search for "germany ehighway"

Re: Tesla – Introducing V3 Supercharging

#238

Post by bonzini »

jerven wrote: post #137
bonzini wrote: post #107

Earlier quoted context omitted.

Which would be a problem when everyone gets an electric car and every night the owners will request 20 kW for up to 8 hours (hence sustained, not peak). For a condo that could easily be half a megawatt.

That is an unreasonable number. That is 160 kwh of power which is double the largest model 3 battery. This would require everyone to drive nearly 600 miles a day at highway speed. Roughly nine hours of driving a day at 75miles an hour. The expectation is that people drive 30ish miles a day. This is about 11kwh. Over 8 hours a night, well within reasonable limits.

I was thinking of 10 kW * 2 cars, but actually even for a single car you need 120 kWh to charge 85 kWh. You're right that it won't happen every night for 8 hours, I was wrong about that.

Problem is that you have to size for the worst case, which may happen only once a year, but it will happen. Everyone coming back after Thanksgiving. Everyone reaching a vacation place on a Sunday evening in the summer. Bam, 20 kW sustained for a few hours.

It takes only a few big condos before you need to bring 400 kV lines downtown...

Re: Tesla – Introducing V3 Supercharging

#239

Post by bonzini »

rypskar wrote: post #130
bonzini wrote: post #105

Earlier quoted context omitted.

Isn't that a waste of copper? My house has about 20 Amps (3.3 kW at 230 V).

Are you sure your intake fuse is only 20A? Where I live it is normal for each circuit to have 16A, and if you have induction stove at least 20A for it. My intake fuse is only 55A (230V) since I have an old house, but should be upgraded

I checked now and the fuses are 15 A + 15 A, but the utility company disconnects me if I go over about 4 kW (18 A), or over 3.3 kW for more than a few minutes.

My sister-in-law has an induction stove, so she gets 40 A and the stove is connected directly to a separate bigger fuse.

Re: Tesla – Introducing V3 Supercharging

#240

Post by bonzini »

imeron wrote: post #134
bonzini wrote: post #105

Earlier quoted context omitted.

Isn't that a waste of copper? My house has about 20 Amps (3.3 kW at 230 V).

You sure about that? That would mean either running an electric oven, or an electric hob, or an aircon. But no more than one of those at once.

It's 230 V so two of those but not all three indeed.

I don't have an electric hob but electric heater + dishwasher + oven certainly triggers the breaker.

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