Comparison of Linear Fresnel and Parabolic Trough Collector power plants |
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| Authors: | Gabriel Morin Jürgen Dersch Werner Platzer Markus Eck Andreas Häberle |
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| Affiliation: | 1. Research & Development, Novatec Solar GmbH, Herrenstraße 30, 76133 Karlsruhe, Germany;2. German Aerospace Center (DLR), Institute of Technical Thermodynamics Solar Research, Linder Höhe, 51147 Köln, Germany;3. Director Division Solar Thermal and Optics, Fraunhofer-Institut für Solare Energiesysteme ISE, Heidenhofstraße 2, 79110 Freiburg, Germany;4. German Aerospace Center (DLR), Institute of Technical Thermodynamics Solar Research, Pfaffenwaldring 38-40, 70569 Stuttgart, Germany;5. CEO, PSE AG, Emmy-Noether-Str. 2, 79110 Freiburg, Germany;1. E.T.S. Ingenieros Industriales – UNED, C/Juan del Rosal, 12, 28040 Madrid, Spain;2. Institute for Advanced Sustainability Studies (IASS), Potsdam, Germany;3. E.T.S. Ingenieros Industriales – UPM, C/José Gutiérrez Abascal, 2, 28006 Madrid, Spain;1. School of Automobile Engineering, Harbin Institute of Technology at Weihai, 2, West Wenhua Road, Weihai 264209, PR China;2. Department of Physics, Harbin Institute of Technology, 92, West Dazhi Street, Harbin 150001, PR China;3. School of Energy Science and Engineering, Harbin Institute of Technology, 92, West Dazhi Street, Harbin 150001, PR China;1. Mechanical Engineering Department, King Abdulaziz University-Rabigh, P.O. Box 344, Rabigh 21911, Saudi Arabia;2. Jose Gutierrez Abascal, 2 28006 Madrid, Spain |
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| Abstract: | The Linear Fresnel Collector (LFC) technology is currently being commercialised by several companies for the application in solar thermal power plants. This study compares the electricity generation costs for LFC and Parabolic Trough Collector (PTC). PTC is the most commercial CSP technology to date and is therefore regarded as the benchmark. For reasons of comparability, direct steam generation is assumed for both LFC and PTC.For the LFC, cost data comparable to typical CSP plant sizes are hardly available. Therefore, the break even cost – referring to aperture-specific collector investment – is determined, where cost-parity of the electricity generation with a PTC reference plant is reached.This study varies the assumptions on collector performance and operation and maintenance costs to reflect different designs of LFC technologies. The calculations were carried out using cost and hourly simulation performance models. Depending on the assumptions, the costs for a linear Fresnel collector solar field should range between 78 and 216 €/m2 to reach cost-parity at assumed reference solar field costs of 275 €/m2 for the PTC.The LFC principle of arranging the mirrors horizontally leads to lower aperture-related optical efficiency which must be compensated by lower cost per m2 of aperture compared to PTC. The LFC is a collector with significant cost reduction potential, mainly due to cheaper mirrors and structural advantages.The presented cost and performance targets shown in this study must be met by LFC technology developers to reach the PTC benchmark. |
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