Best case EV charging is about 80% efficient from the grid, power transmission losses are 7-14% depending on your local grid, EV power usage, from the batteries, is also somewhere around 80%
Efficient Gasoline engines come in at 25-30% efficient, Diesel somewhere around 35%. Hybrids can boost that some, because they can scavenge energy that'd otherwise be lost, but only somewhere between 5 and 15% in real world scenarios.
On a tangent, I've been spending the past month looking to see any form of charging I can do from a solar panel to the car without conversion losses and coming up blank. The battery is DC, the panel is DC; but you can't do direct DC charging at home, so you end up with DC -> AC -> DC.
It would be nice to get that last 20% efficiency back but I haven't found it.
You'd have to be able to convince the car that you're able to provide DC charging. Far from an impossibility, but a very roll your own kindof system, and you'll likely need some beefy DC/DC converters to do so.
You could also, similarly, subvert the car entirely and just disconnect it from the car, charge it from the panels/DC converter, and reconnect it when finished.
Unfortunately they don't sell supercharger components at home (and I won't be installing a battery to get that 150kw capacity at home).
On a side note, I don't want to necessarily fast charge the car; I just want to use the electricity from my solar panel in the most efficient possible way; that would be heating water, powering stuff in the house and charging my car; the last of which probably would take the most electricity.
> Best case EV charging is about 80% efficient from the grid, power transmission losses are 7-14% depending on your local grid, EV power usage, from the batteries, is also somewhere around 80%
Pure BS. Tesla is at 95% from outlet to battery on 240V, and it can be even more (depending on the need to run cooling/heating).
Grid transmission losses average at around 5% nationally, but it heavily depends on the location.
Efficient Gasoline engines come in at 25-30% efficient, Diesel somewhere around 35%. Hybrids can boost that some, because they can scavenge energy that'd otherwise be lost, but only somewhere between 5 and 15% in real world scenarios.