If I had installed my inverter setup during Jan/Feb I would’ve been seriously dismayed at the results and with all that money spent. But yes, luckily I know better now having at least seen the system in action, fine tuning it over the months etc. I have seen other solar users echo your thoughts.
Allegedly Jan 2020 was the worst in 7 years when it came to solar yields. My own figures was terrible.
I would love a borehole but talking to a couple of neighbors in my street who has them, water is reached only at about 30 meters. So for drilling, the pump, lining the shaft etc added will probably see me forking out north of R50k. Too rich for my blood now.
Currently I am happy with my two 5000L tanks which I use for lawn and plants only, with a pump to get it into the sprinkler system - also run from solar. So I am saving lots on my water account and the pump works for free.
Good enough for me for now.