[Tilted Irish Kilt]

blackdog :" 51 current and former government energy experts have signed a letter that says kilowatts are subject to misinformation. /s

https://www.rapidtables.com/electric/kW.html"

By the time you add in the 40% power drop in converting electric into the car battery
if you are buying your power from a commercial or utility vendor
you are losing economy and money,
unless you have your own solar system installed on your house, with a utility backup.

[1FreeAmerican]

Where do get that 40% number from?

[Tell It Right]

"By the time you add in the 40% power drop in converting electric into the car battery..."

Umm. No.
I have a 5% drop when charging close to 10kW at home, and almost 10% drop when charging at 5kW at home. Thus the 3.3miles/kWh I usually get when driving I count as an actual 3 miles/kWh from the AC outlet.

And the charging at 5kW is only because I have solar and want to increase the odds that my total load is within the 18kW DC-to-AC conversion limit of my inverters. So if we're charging the EV (5kW) while the clothes dryer is running on high (+ 6kW = 11kW) while we're in the hot tub (+ 3.5kW = 14.5kW) plus various incidentals like cable modem, electric clocks, etc. (+ 0.5kW = 15kW) we're still not pulling power from the grid and adding to our power bill because the inverters can provide that much power.