Senator AYRES (New South Wales—Minister for Industry and Innovation and Minister for Science) (14:12): Australians are the biggest adopters of solar technology on their rooftops because it's in the interests of their electricity bills. It's saving them thousands of dollars every year. And it turns out that—you know the other thing we're big adopters of? Batteries? Tens of thousands of batteries are being installed every month. The PRESIDENT: Senator Canavan, second supplementary?