With an off grid solar system, you’ll have true energy independence, but you won’t have the grid to fall back on. 100% of your electrical needs are going to have to be met by your solar panels and batteries, so you need to size your system properly.
But before you size anything, you’ll want to reduce your electrical needs as much as possible. Swap out all your incandescent light bulbs for LED bulbs. Consider replacing older appliances with newer, high efficiency appliances. Use non-electric appliances if you can. Isn’t this extra work and expense? Yes, but if you can shave a few hundred Watt-hours off your daily use, you’ll save big on solar panels and batteries because fewer will be needed to support your electrical needs.
This is great where there are no electricity