Senator AYRES (New South Wales—Minister for Industry and Innovation and Minister for Science) (15:02): Clear signals matter. From the National Party over there, it's like a dinner bell with no dinner. That's the signal that's been sent from over there. The GenCost report shows clearly what all Australians know—that nuclear power is the most expensive form of energy for Australia. Senator Cash: What do you say about coal? Senator AYRES: Let me come to coal. What it demonstrates is that, today, firmed renewables are competitive with black coal. In the future—let me explain these concepts to you. It's a pity you don't get a whiteboard in Senate question time! If we did, we might be able to take Senator Canavan through these concepts of comparative advantage, technological efficiency, how markets are set, policy certainty and how that delivers investment— (time expired) Senator Wong: I ask that questions be placed on notice.