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Tesla – Introducing V3 Supercharging

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Re: Tesla – Introducing V3 Supercharging

#241

Post by bonzini »

tecleandor wrote: post #202
lultimouomo wrote: post #160

Earlier quoted context omitted.

The standard home contract in Italy is 3.3kW, at 230V it's less that 15 amps for a resistive load. The meter will allow you to go over the allotted power for some time before disconnecting you though (the amount of time is inversely proportional to how much your going over, and I don't think you can ever go over 4kW). Heating and stoves are gas based (ovens usually not though); going over the limit is not usual, the…

Here in Spain we're paying a lot for the power allotted to the contract, being around 30 to 40% of the bill. So, I'm paying around 20€ (before taxes) just for having a 5.75kW contract, and then I have to add my kWh consumption. So reducing your consumption doesn't reflect that much on your bills. Is that the same on Italy ?

Here it is 2 €/month/kW, my total bill was 40-50 €/month before I had a solar roof installed. I consumed about 400 W on average in a house (with solar the consumption is up by 60 W because of the inverter, but I save 30 to 70% plus I can sell a little surplus).

Re: Tesla – Introducing V3 Supercharging

#242

Post by Sohcahtoa82 »

tecleandor wrote: post #199
Sohcahtoa82 wrote: post #145

Earlier quoted context omitted.

There's no way you're only getting 20 amps to your house. A microwave will consume 8-12 amps. A desktop computer is around 3-5 amps. I don't know what my electric stove used when I still had one, but it needed a 40 amp breaker on its own.

Remember there are some Europeans around running 240v ;) Also, at least on the bigger European cities, apartments and flats are more popular than houses, son usually the energy need is lower. And, of course, energy prices! Here, in Madrid, most of my friends are running 10 to 20 amps. I'm an outlier, running 25amps (5.75 kW) because all my stuff is electric (water heater, cold/hot air conditioning, microwave, glass-c…

> supposing you're using 110volts your desktop computer must be a big gaming rig if it's consuming 350 to 550watts ;)

Yup. :-D

Not a BIG rig, but certainly respectable. i9-9900k [0], GeForce GTX 1070 [1], 32 gig of DDR4, 1 TB NVMe, 1 TB SSD, 2 TB HD.

[0] Yes, I know I don't need an i9 for gaming. I don't even need an i7. But I wanted future proofing and bragging rights.

[1] "An i9, but only a GTX 1070?" you might ask. I got the 1070 for free by winning a contest sponsored by MSI. At the time I had an i7-3770k. When I upgraded to the i9 in December, I didn't feel it was worth spending hundreds of dollars for an RTX 2080 (or even 2070) as the performance difference wasn't enough. I'll probably get something from the next gen RTX (3080? 2180? Whatever they call it).

Re: Tesla – Introducing V3 Supercharging

#243

Post by lorenzorhoades »

scarejunba wrote: post #126
cma wrote: post #28

The much bigger news is they completely walked back FSD (full self-driving) into something that you have to monitor at all times by changing the description on their website. The release of a proprietary charger is somehow completely overshadowing that news. It's changed from driving itself around in a ride hailing network to earn you money while you sleep, to now making you always be in the car and pay attention and…

Honestly, every time I read the "you're turning me into someone working to train your program without paying me!" comment I think about this stuff and I realize no one I know would give a goddamn fuck and expect to be paid in cash. Having the better product is sufficient.

These comments remind me of how much a bubble hacker news is. None of my friends would know what the hell a neural network was, and would laugh out loud if they heard that comment.

Re: Tesla – Introducing V3 Supercharging

#244

Post by caf »

snowwindwaves wrote: post #112
caf wrote: post #69

Earlier quoted context omitted.

250KVA is a common rating for a moderately sized distribution substation. The utility certainly doesn't put only 5 houses on one - more like 50.

A moderate distribution substation is probably more like 50 MVA. A house with a 200A service at 240 V is about 50 kW. You might see a 250 kVA padmount transformer feeding half a dozen big houses but that is not the same thing as a substation.

I have worked at an electricity utility. "Distribution substation" is the term of art for a 250KVA padmount transformer and associated HV and LV switchgear (or even just a 50KVA pole mount transformer). A 50MVA installation is what we would refer to as a Zone substation.

5KVA per residential lot is not an uncommon allocation rule. The network is simply not designed to supply every house 200A simultaneously (the same is true of water services: the maximum flow rate of your connection to the water main cannot be sustained if every house in your neighbourhood tries to consume at that rate).

Re: Tesla – Introducing V3 Supercharging

#245

Post by caf »

burfog wrote: post #101
caf wrote: post #69

Earlier quoted context omitted.

250KVA is a common rating for a moderately sized distribution substation. The utility certainly doesn't put only 5 houses on one - more like 50.

Ah, just like internet service: it is oversubscribed. The utility can not deliver what has been promised for all customers at the same time.

Yes, although it not really "promised". A 200A residential service isn't a promise you can consume 200A 24/7, it's just the "never exceed" rating. If you need significantly more power than normal residential needs, I'm sure the utility will be happy to talk to you about your requirements.

Re: Tesla – Introducing V3 Supercharging

#246

Post by burfog »

bonzini wrote: post #239
rypskar wrote: post #130

Earlier quoted context omitted.

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.

That is really strange. Here, the utility company would be happy to have you buy lots more power.

Are you lacking a meter? Is the utility company unable to read your meter remotely and unwilling to send a truck out to read it? This would explain things, in which case you'd want to charge batteries (for free!) whenever you don't need all the power you have purchased.

Fuses are weird too. Those went out of style 60 years ago.

Maybe you will find this weird: I have a device that lets the utility company cut the power to my water heater. They can remotely activate it if they are having problems. In exchange for having this, I get a discount.

Re: Tesla – Introducing V3 Supercharging

#247

Post by FireBeyond »

kayoone wrote: post #61
mtgx wrote: post #49

Earlier quoted context omitted.

Precisely why I said in the past here that it was a big mistake to fit all model 3s with self-driving hardware making the car significantly more expensive in terms of cost to build. Musk once again overestimated by a long shot how good and safe autopilot will be. At least it seems he is becoming more responsible or maybe he is forced to by the new board.

He recently publicly announced that Tesla drivers will be able to fall asleep at the wheel and wake up at the destination by the end of next year. Doesn't sound like a lot changed in his mindset.

Given that Tesla is considered one of the poorer self driving options out there, and the other players in the game say 5-10 years, maybe I need to hit up a bookie in Vegas...

Re: Tesla – Introducing V3 Supercharging

#248

Post by frosted-flakes »

alanfranz wrote: post #225
dreamcompiler wrote: post #216

Earlier quoted context omitted.

Italy used to be strange in that there were two electric feeds per house: One for low-power loads and one for high-power loads. Is that system gone now?

That's internal, right now. You don't get two lines from the grid. But you have multiple internal lines, and usually one 10A lines is mostly for the lights, other include more hungry appliances.

You mean there are multiple circuits inside the house? Isn't that totally normal? My small bungalow has 24 circuits on 200 amp service, plus a subpanel feeding the shop and sauna.

Re: Tesla – Introducing V3 Supercharging

#249

Post by FireBeyond »

oarsinsync wrote: post #196
natch wrote: post #125

Earlier quoted context omitted.

"Data sharing" is pretty vague but assuming you are talking about car data, it's completely decoupled from the VIN or any other identifiers that could ID you, so disabling it is just silly, but yes you can choose to not opt in.

Does "car data" include locations? There's not many people that start from area A (~500m^2 around your home) and go to area Z (~500m^2 around your office) every weekday morning, and back again every weekday evening. And yep, this applies to anything that offers vague rudimentary location monitoring.

Yup. Give me your rough starting location and ending location, one inbound phone number and one outbound and you can probably be uniquely identified.

Re: Tesla – Introducing V3 Supercharging

#250

Post by FireBeyond »

tomp wrote: post #172
beefman wrote: post #97

I'll not take another road trip in my Tesla after dealing with the complete lack of bathrooms between San Jose and Davis -- including at Tesla Livermore which 1. shouldn't really have been closed at that hour and 2. should leave their bathrooms open after they close and 3. there's no excuse for not providing bathrooms at every supercharger station. Oh yeah, and we only put on about a mile a minute despite the charger…

So when you drive a gas car bathrooms just magically appear in front of you?

At gas "charging stations"? Absolutely.
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