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BBCNEWS The Engineers August 26, 2021 01:39:00

Is a tandem cell, two solar cells on top of each other. and the perovskite we can 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 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. ....

Each Other , Triple Junction , Isnt Technology ,

BBCNEWS The Engineers Clean Energy August 24, 2021 01:35:00

Now, in terms of the limitations, if we look at what s 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 with today s silicon technology. so, i m hearing 6%, 7%, 8% from danielle. i m hearing 20% from you. we re not quite at that 85%. and all of this energy we generate needs storing, doesn t it? so, kristian, i know that you re a man of the fjords and boats and ships have been a constant thread throughout your life, even before you became a marine engineer. so, 90% of the world s trade travels by sea, as well as 3% of the world s greenhouse gases, it s estimated nearly half a million people die prematurely every year from the air pollution created by ships. your company created the world s first fully electric ship, a battery operated ferry which has travelled the equivalent of eight times around the equator since ....

Solar Absorbent Material , Solar Panel , Silicon Technology , Kinetic Energy , Needs Storing , Doesn T , Kristian Eikeland Holmefjord , Marine Engineer , Greenhouse Gases , A Million , Air Pollution ,

BBCNEWS The Engineers Clean Energy August 24, 2021 01:34:00

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 danielle just outlined 7 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. ....

Henry Snaith , Technology Works , Solar Panels , Kinetic Energy ,

BBCNEWS The Engineers Clean Energy August 24, 2021 01:39:00

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 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. ....

Each Other , Multi Junction , Multi Junctions , Triple Junction , Isnt Technology ,

Yingqu Technology: the net profit in the first half is 570 million yuan, up 46.64% from the same period last year._SMM

[Yingqu Technology: 570 million yuan in net profit in the first half of the year, an increase of 46.64% over the same period last year] recently, Yingqu Technology released a semi-annual performance report, with operating income of 3.653 billion yuan in the first half of 2021, an increase of 113.4% over the same period last year; net profit belonging to shareholders of listed companies was 570 million yuan, up 46.64% from the same period last year; and basic earnings per share was 0.73 yuan, up 46% from the same period last year. ....

Yingchu Technology , Yingqu Technology , Southeast Asia , Production Capacity ,