Re: Nothing innovative here! ...moving stuck inventory.
@KarlQuick, you have raised some good points. The architecture of the home battery is an unknown variable at the moment. For CPUs to go from PCs to mobile devices, the architecture had to evolve and go from performance orientated towards power orientated. However, credit goes to the PC industry for creating the economies of scale and production at a leave where a mobile chip became feasible. Likewise, weight is a consideration for a home battery but as you said, it might not be the ultimate consideration.
I will have to research the Powerwall in detail. What is the weight of the 10Kwh battery? How many hours does it take to fully recharge? And, what kind of depreciation cycle will they undergo? Etc. If the numbers do come out to be economically feasible then, credit will have to go to the automotive industry because, I don't see the smart phone battery evolving into a home or datacenter battery. But, an automotive battery might do the trick.
The problem with a gas generator is that they can be extremely inefficient. For instance, they can cost $2 an hour if demand is 100 watts or 11kwh.