Thanks for the links....a 4KW solar systems returns on avg (In Melbourne) 14.4KWh. I was guessing around a return. From what I have read a 4KW system will cost around $15K-$20K.
If I manage to reduce my pwr consumption to 40KWh then a 14.4KWh solar production is not enough. The outlay is enormous for not enough returns, for us in Melbourne.
I need to either: reduce our power consumption; look at a larger solar system (read big $...yeah right I need a bigger roof!); or suck it up.
