We have had 3 off grid homes powered by solar. Solar is much more expensive than grid power and, with limited exceptions, is generally not economically justified. Exceptions are, in some instances, a solar powered pool pump or well pump. Depending upon pump size, these pumps can generally be run by solar panels of 1KW or less. There is currently a 22% tax credit for solar placed in service in 2021 but that credit will expire at the end of the year unless it is renewed by Congress. Solar pool heating is a different topic, at least in my opinion. I have had a solar pool heating system and found it helpful. Another issue with solar panels is roof installation. There are two issues: The first is the stress generated by high winds; the second is the additional cost of removing and replacing the panel when the roofing is replaced.
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