Mostly big stinky noisy generators, but some go solar. There are definitely some pros out there.
When we lived off the grid, our solar panels were from the 70s, our batteries were worn out old telephone exchange batteries. Nothing in the system was top of the line, recent, or in perfect repair. In fact, it was all in pretty bad shape.
This meant that during the winter, when there wasn't a lot of sun, sometimes there'd be a bunch of us sitting around the dinner table and someone would say "have i had too much to drink/smoke/etc or is it getting darker in here?" and the answer was "it's getting darker in here".
The inverter switch was located in my wife and I's bedroom, and it emitted a pretty loud buzz, so at the end of the night we switched it off altogether. Not only did the inverter stop buzzing, but you start to realize how the 60hz permeates the air, everywhere you go, and you never notice it until its gone.
Some appliances were simply out of the question. Anything that generated heat with electricity: blow dryers, hair irons, clothing irons, etc. The refrigerator was tiny and ran on propane. Heat came from a wood burning stove. Internet access was dialup, but this was 1998-1999, so that was fine.
A lot of people would say this all sounds awful. It does kind of sound that way. But I lived it for two years, and it was honestly just fine. We kept our full time Silicon Valley jobs. We even worked from home over dialup at times. We learned to adapt. To me, that was the key lesson. It wasn't about technology at all in the end. It was about eliminating waste for the most part. When you look really hard at your own energy usage, when you're ruthless about separating "need" from "want", you may find that the vast majority of your energy use is entirely optional.