Well, if you want solar energy, you need cloudless and sunny. Arizona does that pretty well.
Yeah, but I’m not a big fan of hot weather and being in a desert-like climate.
Việt Nam is a really fine place to retire.
Second Arizona.
Low taxes, good weather, still not liberal, and lots of semi-isolation in rural AZ.
Especially in Northern Arizona, you can buy land even for $500-$1000 per acre.
There are many mountains and other nature wonders and there are lots of places where you need jeep to get to.
There are also huge areas without cell coverage over here.
The main problem is to make sure you have Water.
In some places, they drilled 4000 feet deep without finding any!
Having water delivered, as some do, is costly and cumbersome.
Solar is OK in AZ for remote places.
Septic can be arranged.