Most people, unless you have a very recently built home, will require a new main panel. So the cost will be significantly higher than just the $4,000 base cost. If you're electrical panel is not in the garage or immediately adjacent, running the property cable (a very thick one) from the box to the garage can also be costly. That thick a#
[email protected] wire is not cheap, especially if you need 100+ feet worth of it. So yes, I can easily see the cost escalating into the $8,000+ range for a large number of buyers. You're paying for more than just being able to charge your truck at that point. But, for those considering solar or home backup systems, then the changes should be applicable to those, but that's more where your cost is coming from, making the home compatible for solar or a backup generator, etc.