Ricky Muir could frustrate the Abbott government's plans to dismantle Labor's carbon tax package in its entirety as the likelihood the elusive senator-elect will decide the fate of the $10 billion Clean Energy Finance Corporation is growing.

Based on the numbers in the new Senate, the vote of Mr Muir, of the Australian Motoring Enthusiast Party, has become crucial for the government if it is to abolish the profit-making agency.

Courted by the Greens: Ricky Muir. Credit:Jacky Ghossein

Mr Muir is being courted by the Greens.