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In different regions and stack these materials on top of each other. now, this stacking of solar cells on top of each other we call multi—junctions, and the simplest multi—junction is a tandem cell, two solar cells on top of each other. and the perovskite we tune to match perfectly silicon. it absorbs only the visible light and we let the silicon absorb all the infrared. and in doing that we actually fundamentally improve the efficiencies. if we made a perfect perovskite on silicon tandem ce...

For us, in terms of our public policy, to support these kind of technologies at scale. it will certainly develop and deliver lower—cost solutions that are good for the individual, but the biggest challenge ahead of us isnt technology, its public acceptance. its support for improved permitting and collaboration on changes to ensure that migration patterns for birds are known, and we dont site wind turbines in those areas or wind farms in that space. but there cantjust be a wholesale rejection o...

So this is all fantastic, this is state—of—the—art technology and engineering that is market ready or nearly market—ready. so is the message i should get that you are going to gallop to my rescue when it comes to climate change? that i can carry on with my life as i always have, and everything is going to be fine, because the engineers are going to sort it all out? henry, i want to start with you. is that what i should be taking away from this? that is not what you should be taking away,...

Permitting and collaboration on changes to ensure that migration patterns for birds are known, and we dont site wind turbines in those areas or wind farms in that space. but there cantjust be a wholesale rejection of this technology because of the threat of something that would be negative. that collaboration is the real opportunity for us to work together. so its a partnership, really, its you delivering the technologies that make the future possible, and us adopting them and making the right c...

So its traditional power stations but using green hydrogen as the power source. thank you. im going to look for another question in the room here at the v&a. hi, my name is shivika from imperial college. i just want to know about the future regarding the airborne wind turbines. what do you think that in the near term there is a future for airborne because google investing in airborne wind turbine system, weve seen one — first wind turbine system in germany. so what is the future of that techno...

To see cost reduction. thank you so much, danielle. so we are now going to go to scotland, to alastair, who has a question about nuclear energy. alastair? hello, today weve got representatives of wind and solar, which are often portrayed as the two examples of clean energy. but there are still huge challenges with the amount of land required and energy storage required — challenges which arent faced by existing nuclear power technology, something i would argue we really need to prioritise. i w...

Of us isnt technology, its public acceptance. its support for improved permitting and collaboration on changes to ensure that migration patterns for birds are known, and we dont site wind turbines in those areas or wind farms in that space. but there cantjust be a wholesale rejection of this technology because of the threat of something that would be negative. that collaboration is the real opportunity for us to work together. so its a partnership, really, its you delivering the technologies tha...

And deliver lower—cost solutions that are good for the individual, but the biggest challenge ahead of us isnt technology, its public acceptance. its support for improved permitting and collaboration on changes to ensure that migration patterns for birds are known, and we dont site wind turbines in those areas or wind farms in that space. but there cantjust be a wholesale rejection of this technology because of the threat of something that would be negative. that collaboration is the real oppor...

Is that we have to look at wasting energy as unacceptable. - we cant waste energy in any form of action. i so when the energy is going to be challenging to harvest _ at large—scale, were solving parts of harvesting as much energy- as we can in good ways, _ and then we have to use that energy as efficiently as possible. and before we open it up to questions, danielle, when it comes to the threat that climate change presents to us, who is going to do the heavy lifting? is it going to be the engi...

2028. in march, the trump administration moved to the t deadline up by four years. >> were you blind sided at all by the new time line? >> not at all. we have the opportunity to do this. a lot of thing vs s have to go right. its good for our country. its got nasa move ing in a serious way. >> reporter: rocket has spent years working on a new rocket booster. once beyond earths orbit, lunar landers built by commercial partners like jeff bezos blue r origin will carry them back and forth to moon. t...