My power bill used to be $700-$800 / quarter. Roy from Sparky Solar did an analysis on my usage, and a site inspection, and advised me to install a 5-6kw system.
I was more than happy with his highly competitive quote consisting of 6kw (24 panels) and a Aurora inverter.
The installation was flawless, and I now have no power bill and a credit of over $1000.00 on my bill!
A turnaround of over $4,200.00/annum!
The best no-brain investment I have ever made.
Well done Roy.