Has anyone here ever had success running either of these in a solar-powered off-grid structure?
I’ve seen and read several sources/product reviews that advise against using each of these (especially incinerating toilets) with a solar setup, but I’ve heard anecdotes from a couple of people who used a dedicated solar panel for a mini-split and had no problem.
I think an incinerating toilet is the best option for my location, but I’m not sure if I can swing it off-grid.
The Youtube channel “Ambition Strikes” is using an incinerating toilet. They have a fairly large solar and battery setup.
Lots of people are using inverter mini splits with solar.
Incinerating toilets are power hogs (2-3kWh per cycle) so you’d need a hefty battery bank, but mini-splits are doable with 200-400W draw if you get a good DC inverter model - check out some power stations on gearscouts.com to compare $/Wh for your setup since you’ll want at least 5kWh capacity for both.

