"And consumers with their foot/hand on the power (fossil or renewable) don't use it efficiently/effectively either."
It's pretty much an obsession amongst many on the EV forums I visit to continually be trying to maximise "mpg", and almost gets competitive.
"Charging efficiency in general drops at higher charging rates which is unfortunate."
I'm genuinely not sure about that - the fastest chargers lower their delivery rate ( - I suppose the car must be in control of it - ) once the %age full gets over 80%, to protect the batteries, so it becomes much slower but presumably that takes less power. I've still not used them but I believe some of the fastest (CCS) chargers just stop charging once 80% is reached. Certainly many EV drivers using public chargers don't ever charge about 80% and aim to top up once it reaches about 20% (due to fear of running out if planned chargers are broken or whatever).
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