Good point. And if you continue this thought with PV, which is also DC based, and every device in your home that uses a wall wart (transformer), you start to think what the Edison and Tesla war would look like if it was fought today. If you don’t need A/C, you probably don’t need AC. :-)

He is correct. The cutoff is on the panel and not at the utility entrance to the panel. So no power on the grid means no power in the home. Kind of interested to see if Tesla has a solution for that. In theory if you could put an isolation switch on the utility side of your panel and the battery fed your panel, then…

For SCE check out these rate plan options. There are many and not easy to understand but if you do your homework all the issues you talked about can be resolved to some extent.