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Technical analysis and optimization of a high concentrating photovoltaic power tower

: Ordóñez Moreno, K.; Heimsath, A.; Wiesenfarth, M.; Schöttl, P.; Nitz, P.

Fulltext urn:nbn:de:0011-n-3545988 (412 KByte PDF)
MD5 Fingerprint: 051ed52745038800e7ac8e24b412aa87
Created on: 14.8.2015

Siefer, G. ; American Institute of Physics -AIP-, New York:
11th International Conference on Concentrator Photovoltaic Systems, CPV 2015 : 13–15 April 2015, Aix-les-Bains, France
Woodbury, N.Y.: AIP, 2015 (AIP Conference Proceedings 1679)
ISBN: 978-0-7354-1326-9
Art. 070003, 5 pp.
International Conference on Concentrator Photovoltaic Systems (CPV) <11, 2015, Aix-les-Bains>
Conference Paper, Electronic Publication
Fraunhofer ISE ()
Solarthermie und Optik; III-V und Konzentrator-Photovoltaik; Photovoltaische Module und Kraftwerke; Konzentrator-Optik; Hochkonzentrierende Systeme (HCPV); Photovoltaische Kraftwerke; tracing; power tower; illumination distribution

Based on the results of previous research, a technical study on a 1 MW prototype photovoltaic power tower is presented in this contribution. Some options to optimize the heliostat field were assessed to improve the optical efficiency and yearly energy output. Aiming strategies to create a highly homogeneous radiant flux distribution on the PV receiver and additional optimization options were analyzed. A significant improvement compared to earlier results and an annual mean optical efficiency of 54.7 % was achieved. The cost calculation for the improved system resulted in levelized cost of electricity (LCOE) of 0.19 €/kWh for the exemplary location Seville, Spain. Assumptions for further improvements and heliostat field cost reduction showed an additional cost reduction potential to 0.08 €/kWh.