As someone who lives off the grid in northern Vermont it is certainly possible even with relatively small number of solar panels and batteries and we only use the generator <5 hours a year if at all. It does require some additional thought both in the design of the house (like having the already highly efficient fridge and freezer in a cold space so it uses less energy in the winter) and procedural such as unplugging internet etc. when not using them. We do have a propane stove.

Though our system certainly works if you have grid power easily accessible I would recommend hooking onto that but still building and living in the house as if you were off grid to save energy.

If you have questions I would be happy to answer them.