Efficiency of solar power plants
The Fraunhofer Institute for solar power techniques ISE, Soitec, CEA-Leti as well as the Helmholtz Center Berlin jointly launched today having achieved a new world record for the conversion of sunshine into electricity making use of a solar cellular framework with four solar subcells. Surpassing competitors after just over three-years of research, and going into the roadmap at top notch degree, a brand new record efficiency of 44.7percent had been assessed at a concentration of 297 suns. This suggests that 44.7per cent of the solar power spectrum's power, from ultraviolet until the infrared, is became electrical power. This will be a significant step towards lowering additional the expenses of solar electricity and continues to pave the best way to the 50percent efficiency roadmap.
Back May 2013, the German-French group of Fraunhofer ISE, Soitec, CEA-Leti while the Helmholtz Center Berlin had already announced a solar cell with 43.6% effectiveness. Building about this result, further intensive study work and optimization tips led to the present efficiency of 44.7per cent.
These solar panels are employed in concentrator photovoltaics (CPV), a technology which achieves a lot more than two times the performance of standard PV energy flowers in sun-rich locations. The terrestrial utilization of so-called III-V multi-junction solar cells, which originally originated from room technology, has actually prevailed to appreciate greatest efficiencies for the transformation of sunshine to electricity. Inside multi-junction solar power mobile, a few cells crafted from different III-V semiconductor materials are piled in addition to both. The single subcells absorb various wavelength ranges for the solar range.
“We are incredibly happy with we which was working now for three-years with this four-junction solar mobile, ” says Frank Dimroth, division Head and Project commander in control of this development work on Fraunhofer ISE. “This four-junction solar cellular contains our accumulated expertise of this type over a long time. Besides enhanced materials and optimization regarding the structure, a procedure called wafer bonding plays a central role. With this specific technology, we're able to link two semiconductor crystals, which otherwise can't be grown over each other with a high crystal high quality. In This Manner we can create the suitable semiconductor combination to create the best efficiency solar panels.”
“This world-record increasing our efficiency level by significantly more than 1 part of not as much as 4 months shows the extreme potential of our four-junction solar cellular design which utilizes Soitec bonding methods and expertise, ” states André-Jacques Auberton-Hervé, Soitec’s Chairman and CEO. “It verifies the acceleration associated with the roadmap towards higher efficiencies which represents a key factor to competitiveness of our very own CPV systems. Our Company Is extremely pleased with this accomplishment, a demonstration of an extremely effective collaboration.”