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Post by honestjohn on Nov 12, 2024 22:20:37 GMT
It's easy. Say it's a 75kWh battery, that would require 15kW charging at 100% efficiency, drawing more than 60 Amps from a 230v supply for 5 minutes. This is more than the standard house supply which is 60 Amps. There are no magic chargers, which I assume is your point, Pacifico. Join, I think you did the maths upside down a 75kwh battery would need a 0.9 Megawatt (75K*12) supply to fully recharge in 5 minutes it's about 4000 amps at 230v *blushes* Oh dear, you are right. That's a supply for a small village! |
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Post by jonksy on Nov 12, 2024 23:06:30 GMT
No, but its hard to deny its true when you can see them on the wall. Just because you don't understand how its done doesn't make it untrue. According to the article they can run off a standard building supply, they are also bi-directional which means they can give power back to the building at times of peak demand. This is why I guess they are batteries themselves that pre-charge between car visits. Well the lack of detail in the article is what makes it suspicious - where is this building, how big is it, what power supply does it have, what models of car are they recharging in 5 minutes, etc etc It's all too vague to believe What's that on the roof of the building that all the chargers are connected too? It looks like a solar panel... |
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Post by zanygame on Nov 13, 2024 9:16:52 GMT
Yep. as you say you are a luddite, always behind the curve. The drain of a Luddite isn’t one so naive as to by an EV today because a net zero nut job reckons they will be great in the future . Being behind the curve is to pontificate about EVs and buy a hybrid . No, they're great right now. Faster, cleaner, cheaper to run. Only the guy driving 300 miles every day without a break and living in a block of flats has some difficulty. The list of bad things shrinks daily. |
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Post by zanygame on Nov 13, 2024 9:19:02 GMT
Join, I think you did the maths upside down a 75kwh battery would need a 0.9 Megawatt (75K*12) supply to fully recharge in 5 minutes it's about 4000 amps at 230v *blushes* Oh dear, you are right. That's a supply for a small village! Supply a small village for the 5 minutes it takes, Yes? |
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Post by Orac on Nov 13, 2024 9:39:37 GMT
*blushes* Oh dear, you are right. That's a supply for a small village! Supply a small village for the 5 minutes it takes, Yes? There is no way the grid could make available that capacity everywhere freely and so this is what would happen - When you plug in your car to charge, you go into a queue - either that, or the supply is simply limited. When people complain that it takes four hours to recharge a car that 'can recharge in five minutes', the government can tell them, with hand on heart and a stack of bibles, that there is nothing at all that can be done. |
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Post by Bentley on Nov 13, 2024 9:46:31 GMT
The drain of a Luddite isn’t one so naive as to by an EV today because a net zero nut job reckons they will be great in the future . Being behind the curve is to pontificate about EVs and buy a hybrid . No, they're great right now. Faster, cleaner, cheaper to run. Only the guy driving 300 miles every day without a break and living in a block of flats has some difficulty. The list of bad things shrinks daily. They are not great . The problems have been pointed out to you over and over again . You just ignore them or post a lame strawman then start the bullshit again . You last sentence says it all. |
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Post by zanygame on Nov 13, 2024 10:08:04 GMT
Supply a small village for the 5 minutes it takes, Yes? There is no way the grid could make available that capacity everywhere freely and so this is what would happen - When you plug in your car to charge, you go into a queue - either that, or the supply is simply limited. When people complain that it takes four hours to recharge a car that 'can recharge in five minutes', the government can tell them, with hand on heart and a stack of bibles, that there is nothing at all that can be done. And of course it doesn't. The grid charges the wall mounted batteries at a speed the grid will allow according to demand. The wall batteries charge the cars in 5 minutes. I assume each wall battery holds enough charge for several cars. |
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Post by jonksy on Nov 13, 2024 10:16:55 GMT
There is no way the grid could make available that capacity everywhere freely and so this is what would happen - When you plug in your car to charge, you go into a queue - either that, or the supply is simply limited. When people complain that it takes four hours to recharge a car that 'can recharge in five minutes', the government can tell them, with hand on heart and a stack of bibles, that there is nothing at all that can be done. And of course it doesn't. The grid charges the wall mounted batteries at a speed the grid will allow according to demand. The wall batteries charge the cars in 5 minutes. I assume each wall battery holds enough charge for several cars. Rubbish.. |
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Post by zanygame on Nov 13, 2024 10:17:30 GMT
And of course it doesn't. The grid charges the wall mounted batteries at a speed the grid will allow according to demand. The wall batteries charge the cars in 5 minutes. I assume each wall battery holds enough charge for several cars. Rubbish.. Is that a list of your knowledge on the subject. |
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Post by Orac on Nov 13, 2024 10:20:41 GMT
There is no way the grid could make available that capacity everywhere freely and so this is what would happen - When you plug in your car to charge, you go into a queue - either that, or the supply is simply limited. When people complain that it takes four hours to recharge a car that 'can recharge in five minutes', the government can tell them, with hand on heart and a stack of bibles, that there is nothing at all that can be done. And of course it doesn't. The grid charges the wall mounted batteries at a speed the grid will allow according to demand. The wall batteries charge the cars in 5 minutes. I assume each wall battery holds enough charge for several cars. Then you hit 'several cars' plus 1. To avoid this you might consider rationing the previous cars. It's the same problem - though undoubtedly it would help with the lumpiness. This system effectively becomes your means of rationing. |
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Post by honestjohn on Nov 13, 2024 10:23:56 GMT
*blushes* Oh dear, you are right. That's a supply for a small village! Supply a small village for the 5 minutes it takes, Yes? Yes indeed. The supply for 900 houses, average. |
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Post by jonksy on Nov 13, 2024 10:30:57 GMT
Is that a list of your knowledge on the subject. No it's the list of yours zany which you wear with pride... |
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Post by zanygame on Nov 13, 2024 10:38:51 GMT
And of course it doesn't. The grid charges the wall mounted batteries at a speed the grid will allow according to demand. The wall batteries charge the cars in 5 minutes. I assume each wall battery holds enough charge for several cars. Then you hit 'several cars' plus 1. To avoid this you might consider rationing the previous cars. It's the same problem - though undoubtedly it would help with the lumpiness. This system effectively becomes your means of rationing. For your argument to work you assume that there are a constant stream of cars. You assume the chargers don't continue charging while filling your battery You assume everyone arrives with a completely flat battery You assume no time for one car to move away and another to take its place. All these minutes add up. Yes its possible to imagine this rare scenario, but then its possible to imagine hour long queues at a petrol station if you really want to. That said, my view is we will end up with 200 mile charges taking 2 minutes and these chargers being outside Tesco and Asda etc. What they do very well is solve the problem of peak demand. |
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Post by zanygame on Nov 13, 2024 10:40:34 GMT
Is that a list of your knowledge on the subject. No it's the list of yours zany which you wear with pride... No, its your total knowledge on EV's No research, no links, no evidence, just rubbish. Though in fairness sometime its Bollocks. |
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Post by jonksy on Nov 13, 2024 10:48:18 GMT
No it's the list of yours zany which you wear with pride... No, its your total knowledge on EV's No research, no links, no evidence, just rubbish.Though in fairness sometime its Bollocks. FFS yoi openly ignore any links you are given zany and just keep pouring out your same old nut job mantra which you get second hand from the doom goblin. |
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