[alfon]

From what I understand the Gen 2 Volt when charging on 120 Volt from a normal electric plug has more charging losses than one from a 240 Volt, 3.8 KWH charging rate.

So, with the optional 7.2 KWH charging rate for the 2019 Volt will there be less loss than the 240 Volt 3.8 KWH. If my math theory is correct it should be maybe only 1 KWH loss for an entire charge with the 7.2 rate, and for the 240 and 120 volt charging a 2-3 KWH loss for an entire charge.

Also I would believe that during the cold of winter charging at 7.2 KWH you can preheat with out any loss at all, even with our 2016 Volt with our 3.8KWH charging in winter we still loose a little charge when winter pre heating,as the Volt with the initial pre-heating is using more electric than the 3.8 kwh flow rate of electric charging to preheat the interior etc.

 

[lagagnon]

Theoretically yes, there should be greater somewhat better efficiency because of the higher amp output to the charger, but greater losses in some sections of the chain.

If you want all the science involved read this:

https://www.sciencedirect.com/science/article/pii/S0360544217303730

 

[alfon]

Theoretically yes, there should be greater somewhat better efficiency because of the higher amp output to the charger, but greater losses in some sections of the chain.

If you want all the science involved read this:

https://www.sciencedirect.com/science/article/pii/S0360544217303730

Thanks for the link, but I need a few more cups of coffee this morning to digest it all......

 

[Steverino]

I think both your hypotheses are correct, but the overall saving will still be marginal compared to say, turning off lights in the house, turning off a TV going with no one in the room, that sort of thing.

 

[lagagnon]

Spot on there Steverino!