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Fernandez E.F.,University of Jaén | Perez-Higueras P.,University of Jaén | Almonacid F.,University of Jaén | Ruiz-Arias J.A.,University of Jaén | And 3 more authors.
Energy | Year: 2015

The prediction of the energy yield of HCPV (high concentrator photovoltaic) systems is crucial to evaluate the potential and promote the market expansion of HCPV technology. Currently, there is a lack of experience in the modelling of these kinds of systems due to the special features of such technology. In this work, a practical model based on simple mathematical expressions and atmospheric parameters is introduced. The proposed model takes into account the main important parameters which influence the output of a HCPV system such as cell temperature, spectrum and efficiency of the inverter and other losses of the BOS (balance of system). The results obtained are validated using the data of a HCPV installation located at the University of Jaen in southern Spain and monitored daily every minute since 2011. The model accurately predicts the monthly energy yield with a deviation ranging from 4.07% to -0.47% and the annual final energy yield with a deviation of 0.9%. © 2015 Elsevier Ltd.

Perez-Higueras P.,University of Jaén | Munoz E.,University of Jaén | Almonacid G.,University of Jaén | Vidal P.G.,University of Jaén | And 4 more authors.
AIP Conference Proceedings | Year: 2010

The recent research and field experiences in CPV systems have proved that this technology has present and potential advantages when compared with other sources of energy. Despite of that, if this technology wants to initiate its learning curve with the increment of the production and the consequent price reduction, it is necessary an institutional support that allows this technology to compete against other sources of energy through the creation of a favourable and attractive economic environment for potential investors to get interested in this new technology. Nowadays, Spain is a world CPV referent. The research developed by some of its organism and the industrial experience obtained in the past years through the installation of thousands of MW, is a guarantee of its scientific and industrial potential. The intention of this report is to justify the reasons to set aside a power cap of 10 MW in the Spanish PV regulatory framework dedicated exclusively to CPV systems, and the increment of the feed-in tariff in 10.2 c€/kWh over the present tariff and to reduce progressively this support in a 13% annual until it reaches the flat PV tariff. © 2010 American Institute of Physics.

Luque-Heredia I.,BSQ Solar. | Quemere G.,BSQ Solar. | Cervantes R.,BSQ Solar. | Laurent O.,BSQ Solar. | And 2 more authors.
Springer Series in Optical Sciences | Year: 2012

This chapter provides an updated insight into the specifications and design issues associated with the sun tracker in photovoltaic concentrators, regarding both the mechanical structure and the electronic control unit, along with the description of a set of representative examples. It continues with the description of specific quality assessment instrumentation, developed for the measurement of sun tracking accuracy. It ends by presenting and analyzing the results of a monitoring campaign carried out with these instruments in a demo CPV system for a range of different control strategies. © Springer-Verlag Berlin Heidelberg 2012.

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