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The Sunflower, according to test results, should be able to produce 12kW of electricity and 20kW of heat from 10 hours of sun.
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In a bid to bring affordable solar technology to the market by 2017, IBM Research and Airlight Energy (Switzerland) have partnered to produce a solar parabolic dish that can concentrate the sun's radiation by 2,000 times and convert 80% of it into useful energy. The system is said to be able to generate 12 kW of electrical power and 20 kW of heat under sunny conditions, and will be capable of providing both power and hot water/air conditioning to several homes.
Resembling a 10-m-high sunflower, the high-concentration photovoltaic thermal system from IBM and Airlight Energy can generate 12 kW of power and 20 kW of heat on a sunny day - enough to power several average homes. Standing 33-feet high and weighing approximately 10 tons, the high-concentration photovoltaic thermal (HCPVT) system is based around an array of water-cooled solar chips, which receive the focused sunlight directed at them from 36 elliptic mirrors made of 0.2-mm-thick recyclable foil with a silver coating. The 40-m2 parabolic dish, which is made of patented fiber-based concrete, automatically tracks the sun throughout the day to optimize the capture of solar radiation.
The photovoltaic system behind the Concentrator PhotoVoltaics (CPV) system. (Source: IBM, Airlight) Treated water piped within a few tens of micrometers of the photovoltaic chips maintain them at a safe operating temperature of 105°C. The hot water produced in the process can then be used for heating/cooling or as drinkable water after desalination. According to the companies, a large multi-dish installation could provide enough water for a town.
A small prototype of the IBM cooling manifold extracting the heat from the nine multi-junction solar cells in the center. (Source: IBM) The mirrors and liquid-cooled receivers inside the parabolic dish are encased with a transparent plastic enclosure for protection. It is expected that the mirrors and protective foil will need to be replaced every 10 to 15 years, while the photovoltaic cells would need replacing every 25 years.
Resembling a 10-m-high sunflower, the high-concentration photovoltaic thermal system from IBM and Airlight Energy can generate 12 kW of power and 20 kW of heat on a sunny day - enough to power several average homes. Standing 33-feet high and weighing approximately 10 tons, the high-concentration photovoltaic thermal (HCPVT) system is based around an array of water-cooled solar chips, which receive the focused sunlight directed at them from 36 elliptic mirrors made of 0.2-mm-thick recyclable foil with a silver coating. The 40-m2 parabolic dish, which is made of patented fiber-based concrete, automatically tracks the sun throughout the day to optimize the capture of solar radiation.
The photovoltaic system behind the Concentrator PhotoVoltaics (CPV) system. (Source: IBM, Airlight) Treated water piped within a few tens of micrometers of the photovoltaic chips maintain them at a safe operating temperature of 105°C. The hot water produced in the process can then be used for heating/cooling or as drinkable water after desalination. According to the companies, a large multi-dish installation could provide enough water for a town.
A small prototype of the IBM cooling manifold extracting the heat from the nine multi-junction solar cells in the center. (Source: IBM) The mirrors and liquid-cooled receivers inside the parabolic dish are encased with a transparent plastic enclosure for protection. It is expected that the mirrors and protective foil will need to be replaced every 10 to 15 years, while the photovoltaic cells would need replacing every 25 years.
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