Are you absolutely sure that's the only reason? So, if the coalition is re-elected, they will have the luxury of a least 3 years to formulate an iron clad energy policy that will allow a new coal fired power station to be built cheaper than the alternatives?The only reason no one will build one is for fear of what the govt will do to the coal power station producers in the future. What sort of punitive taxes will they face. Gillard opened that door, so now no one trusts the ALP to invest in such technology.
Just like they have had this term to introduce ANY sort of energy policy? At least if Labor get in they will introduce SOME sort of policy, which is what the energy industry has been crying out for. Case in point is ERM Power, 25% owned by someone I imagine could be your hero, Trevor St Baker (who wanted to buy Hazelwood shortly before its closure, so wedded to coal is he). From ERM's most recent annual report "At its core, Australia needs an enduring national energy policy. This is important to providing an acceptable level of investment certainty to deliver sustainable, reliable and affordable energy. The exit of older baseload power stations and growth in intermittent generation has posed reliability issues and, along with the concentration of ownership of dispatchable generation, have been key factors driving up cost for energy consumers. This has been compounded by issues with the availability and price of gas. The lack of a stable, integrated national energy policy and poor energy infrastructure planning has stifled investment that supports the renewable energy transition. Industry and consumers urgently need a policy framework that supports investment without undermining market price transparency or competition. Failure to deliver such a policy framework will inevitably result in higher costs for energy consumers."
*sigh* It is the policy vacuum from the current mob that is creating the unknown, which is holding back renewables. But, smart operators like AGL are getting out of coal because they know that there's no money in it for their shareholders in future decades, regardless of policy.
(edited once to clarify final paragraph)