I've looked closely at my energy consumption and my family could do off-grid for about 9 months of the year. However, our local weather patterns for those other three months would have me doing a massive amount of generator running.
What I am planning to do long-term is put in a battery storage system and a Sunny Island and partially power my home from solar. When the weather isn't agreeable, I'll still have the grid. When the utility power fails, if in the low solar production winter months, I'll run very minimal load and heat the house with natural gas instead of the heat pump.
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