Looking at their website, it appears that they are targeting large scale customers, such as utilities and businesses. I wonder if it would be possible to economically scale something for a single home. Here in California they have become very quick to turn off the power in some areas when wildfires are a concern. If you lived in such a place then you'd do well to have a private store of electricity. I guess I'm not clear though, could you power your house from one of these batteries, or do you still need the grid to serve up the electricity in a usable form?