We don't have them but there's some good info on the
Local Power website. There are also a lot of great links on that webpage, particularly right down the bottom of the webpage.
(Local Power is a solar panel buying group based in Brisbane).
I did the sums a couple of months ago and worked out that at our place , solar panels would take about 11-12 years to pay for themselves (government rebates were accounted for in these sums). I guess we'd use a slightly less than average amount of electricity here.
In addition to the existing schemes, I think the Labor Party has pledged to introduce a low-interest loans schemes for things like solar panels, if they get into power. That could help with the upfront costs of solar panels I guess
