The power companies will pay you pennies to use the excess energy you make and charge the going rate for it downstream. I would install a hybrid system. Panel power for heavy use items like HVAC and the rest on solar.

A 5k smart inverter system with a power wall would be more than enough to carry you through any two to three day outages. More if sunny out.

The difference with solar is you have to keep an eye on all power consumption. You would be amazed at how much power those phone chargers and small transformers consume.

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Satan creates nothing: he only ruins everything. He does not invent: he tampers. And his followers are no different ~ Archbishop Carlo Maria Vigaṇ