A parabolic solar module, capable of generating heat and electricity simultaneously, emerges as a disruptive innovation in the renewable energy market.
Following high and positive efficiency indicators, this concentrated version of Thermophotovoltaic (TPV) technology is emerging as a hybrid solution, unlike conventional TPV panels that rely on unassisted direct sunlight, this design incorporates refractive surfaces to enhance its performance.
Innovation in parabolic solar module
The synergy between photovoltaics, solar thermal and concentrators has been the subject of study since the late 1970s and early 1980s. However, its development has faced constant challenges, such as high costs and structural complexity.
In the collector design, the thermal part must reach optimal temperatures, while the photovoltaic part must be kept within specific limits to ensure maximum cell efficiency.
The ECOSun project, led by Armin Buchroithner of the Institute of Electrical Measurement and Sensor Systems at the Graz University of Technology (TU Graz) in Austria, stands out among several initiatives worldwide.
EcoSUN prototype development and operation
The theoretical operation is simple: the parabola concentrates the sun’s rays on the photovoltaic cells arranged along the focal line. The heat is transferred to a fluid flowing behind the cells in a piping system, allowing the combined use of thermal and electrical energy for heating, cooling of buildings or industrial applications.
The researchers have also optimized the cooling of the photovoltaic cells to increase the usable heat. Although the university has not yet published technical data, the potential of this technology is remarkable.
Buchroithner states that“this approach can make a significant contribution to the energy transition.” Traditionally, parabolic solar systems have been installed in regions with high insolation such as Spain or the Persian Gulf. However, tests show its feasibility in Austria and other areas for replacing fossil fuels in industrial processes.
The potential impact on the energy transition
The adoption of this parabolic solar module can mark a milestone in the energy transition by providing a viable alternative for reducing the carbon footprint in industry and everyday life. The ability to generate two types of energy efficiently and in a wide range of climates expands the possibilities of its global application.
As society moves towards a more sustainable future, technologies such as the one developed by ECOSun will be critical to achieving global environmental and energy goals.
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Source: sustainabilityenvironment.com
Photo: tugraz.at
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