As I understand it Paul, the feed-in tariff was a 'per unit' fee that was paid to the first few lucky installations, the idea being to encourage people to embark on this scheme, and it was supposed to help the thing pay for itself reasonably quickly. The paltry budget that they set was very quickly filled to capacity, and the Feed In Tariff then stopped.
However, there is still a Renewable Energy BuyBack Rate still applicable, though it is beyond miserly at just 7c per kWh....
http://www.synergy.net.au/docs/rebs_...g_schedule.pdf
I stand correctable, as I don't have a system installed of my own.