The current model of the national energy grid is designed for maximum consumption. The model of the national energy grid is not sustainable for a national climate change strategy. We already see the repeating of past mistakes of investments by picking pet projects and having power carried across long distances with geothermal in Queensland. The current business practices of the national grid stakeholders will easily want to make the existing systems more efficient and effective when government policy has designed the system to maximise energy output.
Coupled with these problems of the national energy grid of high levels of distribution inefficiencies is how Renewable Energy Certificates (RECs) and Green Power both of which seemed to be designed for large economic players to benefit from. With Green Power it is lot clear what it is purchases and for RECs how it is counted.
Another level of complexity there seems to be little interest in a distributed energy system from the managers of the energy industry. Added to this is the executive management culture of the Australian power industry that is based on status quo management where the game is to maximise their sunk costs and their myopic strategic thinking.
Hence we do not see much roll out of Renewable Energy like large-scale wind farms.

http://www.scu.edu.au/staffdirectory/person_detail.php?person_id=13328