that will help you choose the best location depending on whether you've decided to go all-in on the off-grid adventure or just partially while you remain part of a bigger community.
Some people who move off the grid are not doing it strictly for environmental reasons. They do it for energy security reasons—for instance, when they live in storm-prone areas. In that case, solar could be part of your energy system, with the other two parts being a diesel generator and a propane tank.
The other thing we all use on a daily basis is water. Water's a bit more tricky than electricity because if you're totally off the grid, you don't have access to the pipeline network. This means you'd need to make your own sewage system—a septic tank or an outhouse —and find a source of drinking water for your daily needs, such as a private well.