we love to, whenever possible, displace dirty energy, browner sources of power like fossil fuel generations there a lot of pushback only the comply chain or do you have a dominant position in this segment of the market they'll follow suit if you set the example? >> i think one of the surprising things for me, at least, was how eager the supply chain is to embrace the idea of clean energy. what they don't have is know-how. a lot of what we bring to them is, you know, know-how. we've done it. we can show them how to do it in their kicountry. we'll be alongside them and sometimes are investing alongside them. >> reporter: can design and innovation be compatible with renewable energy? >> our approach at apple bring the same level of innovation and engineering and design to the clean energy journey as we do to our products. recycling rare earth elements and getting those into our products. recycling the aluminum that forms the enclosure for so many of our products. all of those things are part of the innovation our engineers love. they love being a part of rethinking what, you know, the iphone