Well, duh! Who else is going to pay? The biggest illusion that Ontario is spinning is that they will be fully protected from cost overruns, by making the whole thing private. It's not going to happen, folks!
Nuclear projects can slip a billion over at the drop of a hat. Look at the Areva 'cheesy concrete' fiasco in Finland. Do you think private industry can absorb that? In this risk-averse climate of today, is anybody going to get into that?
Ontario would only want the AECL experiment if Ottawa backed the cost overruns. Who pays for that? Time to get off the good drugs, Mr. Ontario.