I don’t have the analysis at my fingertips, but we did look at the price for systems to to the entire house, and it wasd no where near $100,000, I think the most expensive was @$14,000. Maybe I”m incorrect, but I thought the drawback to either solar or wind for home was that you still had to use public electric, which then was cost prohibitive. But I’ve only done cursory research on this and it seems my numbers should be closer to the $14K range, paid of in 4.1 years with a 21.2% annual ROI. Still not bad.
Then I’d say, go for it. If you can get it for $14K that is a good deal.
However, you are correct, you will still have to be on the the grid and use public utilites for your peak usage is above what your solar panels can produce.