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BBCNEWS The Engineers June 4, 2024 19:39:00

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 cell, that would top out at about 45%. so we ve fundamentally lifted the ceiling. and if we went one step further to anotherjunction, triple junction, three junctions, that would top out at just above 50%. so what perovskite does is lift the ceiling for potential efficiency and gives us a new path forward to go to higher and higher efficiency. so, i mean, substantial gains in efficiency here. how close is this really to being a real technology? is this now, or this is far flung future? this is very near term. you can t go out today and buy perovskite solar cells, but we re building a production line at the moment. we re talking about next year that the first cells and modules will be in production, and start to be ....

Triple Junction , Production Line , T Go Out ,

BBCNEWS The Engineers June 4, 2024 19:33:00

The international governmental panel on climate change has said that in order to avoid the worst ravages of the heating associated with climate change, we need renewable resources like solar and wind to provide 85% of global electricity by 2050. but where are we now, and what s the scale of the challenge that faces us? so, danielle, tell me a bit about how close we are to that 85% target. well, the good news is that wind and solar power have doubled in the last five years due to their plummeting costs. now, nearly one tenth of the world s electricity comes from wind and solar together. but if i think about it from the wind perspective, at roughly 8%, we have to get 40 plus, 40 50%. that s a huge leap from where we are today, to meet our net zero goals by 2050. so lots of work yet to do. let me turn to henry, let s talk a bit about solar here. solar panels use silicon. can you explain how that technology works, and what its limitations are in helping us reach the goal ....

Climate Change , International Governmental Panel On Climate Change Has , Solar Power , Wind Perspective , Henry Snaith , Technology Works , Solar Panels ,

BBCNEWS The Engineers June 4, 2024 06:39:00

Regions perovskite to absorb in different regions and stuck these materials on top of regions and stuck these materials on top of each regions and stuck these materials on top of each other. now, the stacking of solar top of each other. now, the stacking of solar cells on top of each other, we call of solar cells on top of each other, we call it of solar cells on top of each other, we call it a of solar cells on top of each other, we call it a multi junctions, and the simplest multi junction is a tandem the simplest multi junction is a tandem cell, two solar cells on top of each tandem cell, two solar cells on top of each other, and the perovskite, we continued that to match perfectly silicon we continued that to match perfectly silicon it we continued that to match perfectly silicon. it absorbs only the visible li-ht silicon. it absorbs only the visible light and silicon. it absorbs only the visible light and we left the silicon absorb all the light and we lef ....

Each Other , Solar Cells , Multi Junctions , Solar Top , Multi Junction , Perovskite On Silicon , Li Ht Silicon , Allthe Infrared , Triple Junction , Three Junctions , United States , Aa Ceiling , Higherand Higher ,

BBCNEWS The Engineers June 4, 2024 19:34:00

Danielle just outlined? so, silicon is a semiconductor. that s the material that s used to absorb sunlight and generate electricity in a solar cell. it works by absorbing sunlight, particles of sunlight, that we call photons, they carry energy, they re absorbed in the silicon and what they do is give electrons in that silicon extra kinetic energy. the energy from the photons transferred to the electrons, and those electrons, with that energy, can move around and they re freed from the lattice they re freed from being bound and localised. and that s the current, in essence, those moving electrons, that if we contact the silicon on either side we can extract in an external circuit and generate current and voltage from the material. now, in terms of the limitations, if we look at the optimum efficiency a single solar absorbent material could be, like silicon, they top out at about 25%. that s really the practical limit for an actual solar panel ....

Kinetic Energy , Solar Absorbent Material , Solar Panel ,

MSNBC The 11th Hour With Brian Williams June 4, 2024 06:36:00

Want to punish corporations who speak out in the wrong way like mlb. they want to protect corporations like toyota who s beget the right way. i think that this change is really stark and it s up to all of us americans to hold all of these companies accountable. total will be unhappy they ever met the lincoln project. between galen, and over the past couple hours, i m of course and nascar fan drives in nascar 14 toyota from new jersey. juanita, the silicon many on one six, are you confident, knowing is we do, whatever they say, whatever the findings can be irked by two separate and distinct audiences and are split country, are you confident variable to do the job they are able to do? ....

All Of Us Americans , Lincoln Project , New Jersey ,