Catamount solar does off grid systems, they have a good reputation but I don’t know how far south they install. I would start there, it’s doable to be off grid on solar with enough battery space but if your goal is just to offset your usage a grid tied system is more practical. However there are arguments for being off grid with the incentives and cost/kW being changed constantly. The utilities have a chokehold on the legislature and they try their hardest to lobby against net metered solar all the time, it makes less and less sense every year.