
There may be a 'tipping point' that causes customers to seek an off-grid approach. The more customers move to solar, the remaining utility customer bill will rise, creating even further "headroom" for Tesla's off-grid approach. Tesla is already laying the groundwork to ensure its stationary batteries get as widely distributed as possible.
The new Tesla battery will offer a way to store the excess power generated so that you can use it at another time. There has never really been many options to power your home other than to rely on your local utilities provider (or invest in some form of generator). Unless you're living a frugal life in a small wooden hut or something, solar power hasn’t been able to quite take on the job itself yet. Generating your own power would also mean that you don’t have to deal with frequent outages and the poor customer service of your utility provider.