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Solar researchers at the University of New South Wales, Australia (UNSW) have been able to increase the efficiency of solar energy conversion to more than 40%, which is the highest record so far. Papers describing this outcome will be published in the upcoming issue of "Solar-PV Progress."
The new record was obtained in an outdoor test in Sydney and was confirmed at an outdoor testing facility at the National Renewable Energy Laboratory (NREL). This work was funded by the Australian Renewable Energy Agency and supported by the Australia-United States Advanced Optoelectronics Research Institute. Dr. Mark Kiworths, a solar scientist responsible for this project, said: "This progress has provided stable support for solar power plants."
The landmark 40% conversion rate is the long-term result obtained by the University of South Wales for 40 years of research. In 1989, the first photovoltaic system achieved a conversion rate of more than 20%, and the current result is twice that of that time. “This new result is related to the use of photovoltaic energy towers in Australia,†said Professor Martin Green, of the Institute of Optoelectronics.
The Energy Tower was developed by Australia's "Light Generator Resources Corporation" to provide design solutions and technical support for high-efficiency prototypes. Another collaborator is the US "Spectral Lab" company, which provides some of the batteries used in the project.
According to the report of the Physicist Organization Network on December 8 (Beijing time), a key part of the prototype design is the use of a custom optical band-pass filter on the energy tower, which can reflect light of special wavelengths and capture More sunlight is often wasted by commercial batteries and is converted to electricity at high efficiency that solar cells simply cannot achieve.
The chief executive of the Australian Renewable Energy Agency, Yves Friscolet, said that the successful development of prototypes is a new era for Australian R&D institutions, and will prove the value of Australia’s investment in new energy innovations. “We hope that this independent innovation can be further pushed forward from the prototype to the experimental demonstration, and eventually more efficient commercialized solar power plants can reduce the cost of new energy and increase the core competitiveness.†(Reporter Fang Linlin)
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