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EV charge times

lyledunn

Apparently from September 2021 charge points placed on the U.K. market are required to be factory set not to charge during peak times, 8-11am and 4-10pm. Although the parameter can be altered by the user, it is a recognition that things are getting tight.

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    davezawadi (David Stone): 
     

    There is a huge misunderstanding going on here. The real charging rate is controlled by the vehicle, not the charge point. The range of charge rate options depends on the vehicle and they are not all the same and some are quite simple. Reducing the mains voltage for example does not reduce the charge power, it just increases the current. Charge points do provide communication with the vehicle, but this is not usually on a completely “sliding scale” as this makes the charger (in the vehicle) much more complex.

     

    It's not that simple, as the charger also tells the vehicle how much power it is allowed to draw.  Otherwise you'd get cars trying to charge at 7.2kW through a “granny lead” plugged into a 13A socket.

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    davezawadi (David Stone): 
     

    There is a huge misunderstanding going on here. The real charging rate is controlled by the vehicle, not the charge point. The range of charge rate options depends on the vehicle and they are not all the same and some are quite simple. Reducing the mains voltage for example does not reduce the charge power, it just increases the current. Charge points do provide communication with the vehicle, but this is not usually on a completely “sliding scale” as this makes the charger (in the vehicle) much more complex.

     

    It's not that simple, as the charger also tells the vehicle how much power it is allowed to draw.  Otherwise you'd get cars trying to charge at 7.2kW through a “granny lead” plugged into a 13A socket.

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