In what way will the current mechanism do that? As a producer I pay the carbon tax and pass on the extra cost to the consumer. As a consumer, the Government has decided it will compensate me so that I'm not out of pocket so am happy to pay the extra cost.
The concept is that as the price per tonne increases, the cost of alternate energy becomes less than the existing coal fired power stations.
The Clean Energy Bill encompasses more than just the Carbon Price, and perhaps some of those parts of the Bill would assist in clean air technology better than the Carbon Price.
In this discussion I am on the side of the planet - but to the anthropogenic influence on the 1.0 degree increase in average temerature in the last 150 years I am not sure.
Cheers
BH