Well, looking at these prices here listed seems like solar in US is really costly for some reason? I have a 9.8kWp system in europe, installed a year or two ago, and it cost me 12k euros. Out of that, I’ll get 2ke back in tax rebates, so 1ke for 1kwp.

During summertime, I get 1500kWh approx in a month. I have one AC unit and two electric cars, and a 24U server rack, and can live without electricity bills some months.