Some experts estimate we only need about 100,000,000 of these to satisfy most storage needs for America.
Possibly doable over the next 20 years.
1. 100m to achieve what?
2. There are only around 82m single family houses in the United States.
Many larger solar installs would have a 2nd or 3rd powerwall
It would make a LOT more sense to be pushing LifePo4 than more lithium ion powerwalls. Far better durability, less risk of runaway thermals, and the slightly lower power density is irrelevant for a static deployment.