To live off grid means you will be spending a lot more than you think. The costs associated with off the grid living may not be very easy to work with so its better off using a hybrid solution.
While we often complain about the utility services we receive, it is easy to forget that the costs for maintaining that service comes at a higher price than we realize. When going off the grid, the majority of these costs for maintenance and upkeep will shift from a utility service to you.
You should have a backup system in place to in case your current services are blocked, may be a better solution. It is also important to remember that sheltering in place will generally be your best option in all but the most extreme circumstances.