Yep. Here in Colorado I installed two powerwalls moderately subsidized by the electricity company. It’s not going to save me meaningful amounts of money even in the long term and I would much rather see energy issues solved at a societal level. But our electricity provider is just unable to reliably keep the lights on through winter and wildfire season, I.e. most of the year. Since installing the batteries a couple years ago our home has stayed warm and lit through two multi-day outages when neighbors have had to go stay in a hotel.