Soldato
Here we go again.
The Tesla Thread
- Thread starter wildest_jjk
- Start date
I'll let an electrician correct me, but my understanding is that anything above 22kW chargers will need a 3 phase/400v power supply, which is something thats never likely to fed to any domestic home as its too dangerous?
240v/100a would mean 24kW, while 240v/200a if your able to get a really decent power supply into your home gives 48kW. Remember you also need to run the whole rest of your house off that supply so you can't carve all of it out for charging your car. Perhaps 50a needs to be allocated to the house? Again, I'll let an electrician correct me.
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I'd have a Tesla 3 but it's got to be cheaper and less headache than a standard petrol/diesel of a like for like class. The other problem I have is that I've no where to charge one living in a flat. 200 mile range is fine for my driving pattern.
Only if you apply the exact same refuelling logic to EVs as current petrol vehicles.
Yes for some segments and users quick charging will be a requirement the majority of the time. However for people like me (and I would consider myself an average motorist, as in using the car to primarily get to and from work during the week and for general family transportation at weekends) the need for quick charging is not a major requirement.
Providing I can plug an EV in over night and maybe at work. The fact charging an EV takes multiple hours will not be a problem and I doubt it will be for your average motorist.
Ultimately it is just a change in refuelling mindset which people will get used to, in the same way people make sure their mobile phone and other electronic equipment is charged for use when needed the majority of the time*
*I do accept that everyone wakes up in the morning occasionally with the realisation that their mobile phone is dead as they have forgotten to put it on charge. I don't doubt this will happen with EVs and it will be a massive ball ache.
Soldato
Also, what's the solution for people who live in city/town centres? You have a high density population of people who park their cars on the street and don't have a designated drive/parking spot - what's the solution for this? I assume councils will need to start installing them?
Your creating immovable barriers that confirm your views, that aren't necessarily true, and i think you should factor in humans abilty to find solutions to problems that on the face of it aren't possible. Quite often we are cleverer than even we take ourselves for
For example, homes that were beyond the reach of traditional broadband would by your thinking only be able to resolve this problem if the infrastructure was significantly upgraded at an unviable cost, however the problem was resolved by people at looking at delivering solutions via satellite or the development of 4G WiMax and 5G coming. My point is you need to be open minded to solutions that might not be obvious yet.
For me the 2 key questions are.
1 Is the amount of time a EV is not travelling sufficient to charge a car for the intended amount of time it is.
2 Is the amount of charge a home can receive in 24 hours enough to cater for the 24 hour demands of a car.
I see the answer of these both being yes, and so i think widespread viablity is much closer than than you think, but not here yet.
I used to live in a village about 10 miles from the nearest petrol station and more than once someone from my family left the car at home with less than 10 miles of petrol. That's not an issue unique to EVs
The problem with home charging is it starts to fall apart when you have more than 1 EV.
I've raised this a few times and get regularly shot down as being an idiot. Apparently "most people" can easily have high speed home chargers installed, and thinking otherwise means your just posting nonsense and trashing the thread.
Of all the places I've lived (1 flat, 6 houses) only 1 of the houses could have had a charger installed, and it would have requires converting the front garden into parking.
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Replace "car" with "cars".
Man of Honour
Well not really, since Tesla's fast charging system allows for some very quick charging. You could easily stop for lunch while your car charges and then continue your journey.
"Tesla supercharging stations charge with up to 120 kW of power, or up to 16 times as fast as public charging stations; they take about 20 minutes to charge to 50%, 40 minutes to charge to 80%, and 75 minutes to 100%."
20 minutes to 50% is enough to stop for the loo and have a snack/coffee/tea/short break etc on a long trip.
Man of Honour
Yes, hence why I said "Tesla's fast charging system".
I really don't see what the issue is with charging. Its only the edge case examples where EV's fall down, i.e. a rep **** who is doing 500 miles a day for business. Yeah, an EV isn't practical, but for a family who drives down to Brighton from London for a weekend break isn't going to have any problems if there are charging stations located along the stretches of road that connect cities to cities.
Its only rep mobiles that will experience inconvenience and you know what, they can stick to their 70 litre capacity diesels since they're better suited for it.
Its only rep mobiles that will experience inconvenience and you know what, they can stick to their 70 litre capacity diesels since they're better suited for it.
Man of Honour
Well those manufacturers will have to buckle up and sort it out then
But again you are applying current situation to conclude that EVs are not viable. As EV up take increases, solutions to get around current situation limitations will be developed. Yes it will be the earliest adopters of the technology which will end up getting shafted, but that's no different to other tech.
Your argument seems to be (and apologies if I'm wrong) that everything hasn't been worked out yet so there is little point progressing with this line of tech. Yet early tech creates demand, demand creates improvements and solutions to limitations which in turn fuels further demand
Your argument seems to be (and apologies if I'm wrong) that everything hasn't been worked out yet so there is little point progressing with this line of tech. Yet early tech creates demand, demand creates improvements and solutions to limitations which in turn fuels further demand
The answer is still yes, I think you would need to get to above 4 EV' before the answer is no, based on average yearly mileage and the amount of hours it's consumed within.
Edit actually it's higher than that
No, my argument is that there are some barriers that are almost impossible to get over.
Lots of areas will improve, but pushing home power supplies beyond the current 240v/100a infrastructure is incredibly unlikely. 3 Phase is simply not going to happen. That limits home charging to around 22kW no matter what you do, which will have to be split among the cars when you have more than 1 EV.
That's a barrier that's quite visible, which is why my stance is that home charging is a dead end.
Lots of areas will improve, but pushing home power supplies beyond the current 240v/100a infrastructure is incredibly unlikely. 3 Phase is simply not going to happen. That limits home charging to around 22kW no matter what you do, which will have to be split among the cars when you have more than 1 EV.
That's a barrier that's quite visible, which is why my stance is that home charging is a dead end.
Really? Most homes will be 3 or 7kW chargers. 11 for lucky people and 22kW in very rare situations.
7kW is what, 10 miles per hour of charge? With 4 cars thats 2.5 miles an hour of charge.
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