Did you know you can just DIY?
I thought my second off-grid setup was comfortably overbuilt, with 24kw of panels and 75kwh of battery. Charging cars and running space heaters 24/7 was fine until we had a couple cases of three completely overcast days.
It only took a small tweak to the heating and not charging the Tesla from the batteries to work around, but even a $100k system is not “just as good” as a grid tie.
That nudged me to try charging the batteries with a portable generator just for the experience, and a good thing, because the configuration was wrong, and it took a lot of messing around to get it working. Not something I would have wanted to figure out under pressure on a cold dark night.
Generators feel like Stone Age technology compared to solar — gas, oil, super noisy, and the power output is so ratty that it leaves the lights flickering slightly.
I looked into propane fuel cells a couple years ago, but they were crazy expensive per watt and had relatively short lifespans.
There is definitely a level of satisfaction to independently replicating the utilities of civilization!