I have to admit never having understood this concept.
So, you power your home with your car battery.
You need to go somewhere. Your battery is now 50% depleted.
There's an emergency, you need to evacuate. Your battery is 50% depleted.
There's an emergency. Power is out. You use your car battery to power your home. You have to go out for supplies. Your family is left without power at home while you drive off into the darkness.
Etc.
Assuming a 90% round-trip efficiency (it could be worse), this means you will spend 11% for the energy you will use at home if it has to go in and out of your EV.
Finally, a decade later (or less), you'll have to replace the vehicle's battery at a cost of $25K or more.
Can someone explain how this makes any sense at all?
So, you power your home with your car battery.
You need to go somewhere. Your battery is now 50% depleted.
There's an emergency, you need to evacuate. Your battery is 50% depleted.
There's an emergency. Power is out. You use your car battery to power your home. You have to go out for supplies. Your family is left without power at home while you drive off into the darkness.
Etc.
Assuming a 90% round-trip efficiency (it could be worse), this means you will spend 11% for the energy you will use at home if it has to go in and out of your EV.
Finally, a decade later (or less), you'll have to replace the vehicle's battery at a cost of $25K or more.
Can someone explain how this makes any sense at all?