Quote from: Nearings Fault on Jul 04, 2023, 06:46 AMThere is no reason why your house could not have a small battery bank and your car the large battery bank. The large solar array could do the house and the extra going to your car. The car could trickle back to the small house battery as needed at night. All of that is off the shelf and can pay for itself slowly over time.
Cheers,  NF

It makes sense if you are generating your own power. 

The charge efficiency of a lithium battery tops out at 95%.  It is typically lower in the real world.  Generate your own power and you don't pay for the loss.

People in the city are on a grid.  Moving energy back and forth to a battery is an expense city people avoid by being on a grid.  Charging an auto battery and using it to drive a car makes sense for them.  Using an auto battery for anything else for a person connected to a grid is extra cost and solves no need.

The number of rural people is very small compared to the number of city people.  The majority of vehicle buyers gain nothing by running their house off a car.  When the car is at home it most likely needs to be charged anyway no matter where you live.  At night.  Perhaps all night.  What is the house supposed to do?  Wait for the car to charge?  What does the house do when the car is not home?

If a car is running a house it will never have a full charge.  When exactly would it be charged?


Did she consider that when the blackout is over the car will have to charge?  I hope it is a short blackout.  How much charge did she have when the blackout started?

She does not care.  She is living in a million dollar house with a 100K truck having no visible means of support.  What cares would she have?  Needing a full charge on the truck is not one of them.