I'm seeing two lines of thought on here. One is being ready for a weather event that can cause power loss for days, or even weeks. And the other line of thought is more severe loss of power that would affect the entire country for the long term.
For me, I'm just focusing on weather related issues with the goal of still being able to maintain a decent standard of living. During Covid, we realized how important bartering is. Having lots of eggs to trade allowed us to get things that others had stocked up on, but where not easy to find a the stores. I honestly didn't think that would ever happen, but now I know it's very likely to happen again.
Solar Cells for charging and short term use during the day might be in our future. I can see where it would be useful to charge our phones, or have another source of power if we run low on fuel. Hopefully I can get Natural Gas connected to my house before we need it and buy a bigger generator.
With the cost of food skyrocketing, it just makes sense to raise and grow as much as possible to be less dependent on grocery stores. Same with canning and having a large supply of food on hand makes a lot of sense to me. It sure seems a lot easier to have it and not need it, then to try and find it if you need it.