As you know, in many of our nuclear sites there is more than one unit—in Darlington, in Bruce Power and Pickering. Again, with the new technologies it's hard to know a priori how they interconnect and what the safety case is if things go wrong. So we would have to assess that. I really cannot assess a priori a particular technology without knowing their safety case and all the defence in depth, with all the supporting layers. We'd have to see how they interact with each other, if there is any.
On May 15th, 2012. See this statement in context.