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EV Charging, how fast can you get?

I have just seen this article about a 1.2MW EV charging point:

https://www.express.co.uk/life-style/cars/1123418/electric-car-charging-300-miles-range-15-minutes


How do you get this sort of power down a cable that you could easily pick up and plug in?  Where does the power come from?  What would this sort of charging rate do to the battery?  I hope all this stuff is properly shielded or I could see a few watches and phones suffering, bearing in mind that these items could easily be touching the cable.
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  • Assuming that this sort of thing is for recharging a fleet of articulated lorries, then to replace that diesel tank in the yard, a local substation (OK maybe a 33kV one) is going to be essential - a 400V 3 phase supply from 300 yards away simply won't hack it. Ideally, to keep the cable manageable, (as I have said elsewhere before)  we will at some point need to overcome our squeamishness about having higher voltages than the current 1kV limit for things to be handled by the general public, or maybe trained members of staff. After all, copper mines in Africa seem to manage to use connectors for 3000V or so to get hundreds of kW to go a decent distance, so it is not like it can't be done, it just needs the mind set. And the current method using a water cooled cable to keep the voltage below 999V is not a well thought solution - just imagine the mess if the cable develops a coolant leak.
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  • Assuming that this sort of thing is for recharging a fleet of articulated lorries, then to replace that diesel tank in the yard, a local substation (OK maybe a 33kV one) is going to be essential - a 400V 3 phase supply from 300 yards away simply won't hack it. Ideally, to keep the cable manageable, (as I have said elsewhere before)  we will at some point need to overcome our squeamishness about having higher voltages than the current 1kV limit for things to be handled by the general public, or maybe trained members of staff. After all, copper mines in Africa seem to manage to use connectors for 3000V or so to get hundreds of kW to go a decent distance, so it is not like it can't be done, it just needs the mind set. And the current method using a water cooled cable to keep the voltage below 999V is not a well thought solution - just imagine the mess if the cable develops a coolant leak.
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