IBM RESEARCH / SCIENCE PHOTO LIBRARY IBM RESEARCH / SCIENCE PHOTO LIBRARY
Concentrated solar power, IBM research. Close-up of the focal collection point of a High Concentration PhotoVoltaic Thermal (HCPVT) prototype at IBM Research-Zurich, Switzerland. This system uses a large parabolic dish with a tracking system. Sunlight is reflected onto these microchannel-liquid cooled receivers with triple-junction photovoltaic chips. These are mounted on microstructured layers that pipe liquid coolant to within a few tens of micrometres to absorb heat and draw it away 10 times more effectively than with passive air cooling. This allows high concentrations of solar power. Photographed in August 2012.
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