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
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 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
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 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,
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. now, in terms of the limitations, if we look at what s the optimum efficiency a single solar absorbent material could be,
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. 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