"But sticking a giant battery on the wall? I can see everyone having one..."
High-rise office and apartment buildings probably don't have space to store all those batteries. If you have a suburban home with a garage you can hang a battery on the garage wall, but if you live in a 20-story apartment building, where would you put it? I doubt that fire codes would allow putting huge lithium batteries inside every apartment. A large fraction of the U.S. population lives in this kind of densely-packed urban environment.
Comments
"But sticking a giant battery on the wall? I can see everyone having one..."
High-rise office and apartment buildings probably don't have space to store all those batteries. If you have a suburban home with a garage you can hang a battery on the garage wall, but if you live in a 20-story apartment building, where would you put it? I doubt that fire codes would allow putting huge lithium batteries inside every apartment. A large fraction of the U.S. population lives in this kind of densely-packed urban environment.