The head of Ontario Power Generation says the public company remains on track to convert the Thunder Bay coal plant to natural gas. Tom Mitchell says there's been no change in plans and no delays. He says the overall timeline remains the same, to have the plant converted by 2014. Mitchell says they want to make the conversion in "a careful deliberate way, in order to do it safely" and consider "all the different options." He says the priority now is getting the Atikokan plant converted to burn a cleaner fuel then concentrating on Thunder Bay.