My solar is hybrid, grid tied with some backup, not alot. For basic needs I dont need alot. If I cut off utilites, the main change is that I would no longer have a kitchen stove or water heater, as they are 240V. And no light in the downstairs bathroom... the vageries of the limitations of moving some circuits to the four backed-up circuits that come from the inverter. The bathroom lights, and one of the living room outlets, seem to be connected in line to the utility room and then garage lights. All of that is easily worked around, I do it all the time during multi-day power outages. Just saying, when you come in and put in a retro-fit thing, like limited circuits/amps can be fed from the inverter, and the house was not wired for that, you do what you can. I have lights everywhere but that one bathroom, and outlets in many spots all over. I usually end up with the toaster and electric kettle plugged in to outlets next to the dining table, which is next to the wood stove. Realy, if I was a pioneer woman, I would still be just so, so pleased to have electric lights, a refrigerator, and indoor plumbing ( even if it is not heated). And, so I am pleased now too when I need to step down to that. I even have solar ovens that heat up food and hot water when it is too hot to run the wood stove -- if I was a pioneer woman, that in itself would be another amazing thing ! I have been practicing some of this lately just to stay limber. I have been playing how-low-can-you go most days on electric useage, sometimes I forget, to make sure I have the bugs worked out. I told someone else I was in to play the "turn off utilites for the weekend" this weekend coming up, which includes not using the solar, which will be no problem. A fun break, like camping. My water tank will gravity feed the house with the pressure pump off, 48 hours wont harm the fridge food if it stays closed, and I have a solar oven and plenty of easy food.... It does take a bit longer to water the garden that way, and I wont be on the internet, which means I should get lots done, excepting I wont can anything of course on those 2 days. I do not want to can outdoors on the rocket stove, although another time, I will have to practice that too.
This is all "play" realy, or practice for a real SHTF, the power company only charges me a small monthly fee to be my main battery and 240V supplier, so, we would have to be in a major depression, or I would have to get a few more notches up in being irritated with the power company, before I would unplug. But, it is nice to know I could. Because either could happen
But, like I said, the problem isnt that I can get by -- the problem is the 2nd order effects from the other people who would freak out