Average electricity cost in the US is about 13.9 cents per kwh... 75 kwh battery in the 3/Y would cost on average $10.43 to "fill" from 0.
Of course you won't generally do a 0->100 charge, and there's some transmission loss.
The average MPG of the US gasoline fleet is about 25 mpg, and $2.40 is the average cost of a gallon of gasoline nationally.
So $10.43 would get you ~108.65 miles of range using MPG and gas price averages.
EV consumption varies by driving style, weather, tires, etc...but even if you knock off 30% of rated range you should get 2x that much range out of an LR 3 or Y for the same amount of money.
But that's all averages. A 50 mpg hybrid probably isn't TOO far off from a 3/Y driving in the winter on sticky tires (though the EV should still comfortably beat it otherwise using average electric costs)... and folks in places like NYC and Hawaii are paying nearer 30 cents per kwh.
Other folks are paying way less (I pay 2.79c per kwh to charge overnight for example).
I hear Tesla solar is pretty affordable