How much money have you actually saved installing solar ?

[GCE]

On any solar system if it is an over design on PV and especially batteries the pay back period will become longer.

It would be like starting a courier company and having a contract to delver 200Kg's from PE to Cape town every 2nd day - I base my rates on what the market dictates at the moment and then buy a 10 Ton truck for the transport - I am never going to make money , but if I bought a 0,5ton bakkie and did the delivery I could make money and pay off the bakkie

Likewise with solar - If I put up a 60Kw plant that can supply me with +/-360Kwh of electricity every day but only actually use 20Kwh a day , I will never have a savings - If I put up a 5kw plant that supplies +/-30Kwh a day my return with improve and if i stick up 3Kw plant that gives me around 18Kwh per day i will use every Kw and my rate of return will improve compared to the 5kw and definitely the 60kw

In the end - Courses for horses

[Justloadit]

My personal experience is a monthly saving of approximately 150kW to 180kW on my dual Solar geyser solution, and an average of 200kW to 150kW on my 5.5kW Deye, which has 2.7kW PV and 2 by 5kW Lithium batteries.
My Water heating system has made an ROI with in 4 years, and bear in mind that I get 300L of 65°C of hot water 320 days a year, with a average consumption of 1kW a day from the grid as a backup for the rainy days and over consumption of hot water.
ROI on the inverter is going to be more like 10 years.

Inconvenience does not even come into the equation. Seamless operation during frequent power losses and load shedding.