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Cart before the horse? (EV charging)

Am looking at replacing our 1999 diesel engined car ideally with an EV.

Would obviously want to charge with a 7 kW unit so the question is would our existing Grey Series 7 II b cutout with an 80A fuse fitted be capable of 7 kW or only 3.6 kW. 

So before I even look at a car, I really need to know.  Emailed SP Energy Systems “Getting Connected” and get the reply, “Please be advised that when your installer submits the notification form for the charger, the property will be surveyed and anything required will be carried out as part of that.”  Ok then, I buy the car and then find out that I can only charge at the 3.6kW rate. I could of course have a charging point fitted first, but then would not be able to claim any subsidy or dealer offer.

Clive

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  • Helios: 
     

    I should hang in there ancient mariner , the home charger idea may be a big mistake for domestic grid loads , 23mn cars and the load is impressive at any time of day , and it could be a big mistake shoving charging onto night loads , even though i initially backed night time charging my self , at the moment for EV use some has got to get the correct calculator out . I can see why the rapid charge thinkers have the edge on this , but it depends on the battery and how it wears with rapid charging , some EV owners could be very upset if they find that after 5 yrs use of the rapid charger , there battery takes only an 80% charge , due to degradation, through using high rate charging.

    The lack of complete recycling is problematic , but I think some batteries being installed now will not be the ones we have in a couple of years , and if they just make batteries that don't recycle then someone will have the cost , and it would benefit the car makers to be able to recycle batteries , if the 5yr degradation barrier cannot be improved .

    Even GM have now got battery problems , so even the big car makers can make poor choices. 

    I dont think Tesla will win the battery race , but I have to admit the new model 3 motor is pretty amazing 96% claimed efficiency .  

    Many manufacturers offer 7 or 8 year warranties on their batteries.  They wouldn't do that if the batteries started failing after 5 years.  The cost of the warranty replacements would wipe out any profits on the cars.

Reply
  • Helios: 
     

    I should hang in there ancient mariner , the home charger idea may be a big mistake for domestic grid loads , 23mn cars and the load is impressive at any time of day , and it could be a big mistake shoving charging onto night loads , even though i initially backed night time charging my self , at the moment for EV use some has got to get the correct calculator out . I can see why the rapid charge thinkers have the edge on this , but it depends on the battery and how it wears with rapid charging , some EV owners could be very upset if they find that after 5 yrs use of the rapid charger , there battery takes only an 80% charge , due to degradation, through using high rate charging.

    The lack of complete recycling is problematic , but I think some batteries being installed now will not be the ones we have in a couple of years , and if they just make batteries that don't recycle then someone will have the cost , and it would benefit the car makers to be able to recycle batteries , if the 5yr degradation barrier cannot be improved .

    Even GM have now got battery problems , so even the big car makers can make poor choices. 

    I dont think Tesla will win the battery race , but I have to admit the new model 3 motor is pretty amazing 96% claimed efficiency .  

    Many manufacturers offer 7 or 8 year warranties on their batteries.  They wouldn't do that if the batteries started failing after 5 years.  The cost of the warranty replacements would wipe out any profits on the cars.

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