We discovered by accident that kalgoorlie WAS a remote area and after means testing we were good for a 50% rebate. by the time it was istalled , rising material costs made it around45%.
Im told that the best rebate you can get now is $8000. that would be 50% of a 1kw system.
Our s set us back about $19000 (plus the $16500 of the rebate).
our meter starts runnig backwards at about800watts, but our FRidge /freezer set up is big and old, and we havent started seroiusly working on our power us yet.
the decision to go for it was based on long term thinking. The solar water system is 15 years old and still going strong ,. when we installed that it our friends said the cost was too high but they have all gone through plenty of water heaters in that time. so this was the obvious next move.
I look at it by comparing it to replacing the car with a new Commodore or Ford( not that you would

)and the car fueled itself for the next 25years
if big fancy homes, cars and boats are not you thing, then I reckon this is a great way to upvalue your house AND get a return