Objetivo There are two main objectives: 1) Conduct detailed analysis and experimentation of topics as a follow-on to the previous Concerted Action on PV arrays and prepare additional design practices and guidelines for PV systems; 2) Develop reliable low-cost Si-based solar irradiance sensors and field calibration methods for Si thermopile sensors. 2000 commercially produced solar cells have been studied. Dispersions in series and stunt resistances were low. The dispersion in dark current was lower than that in photocurrent. The main criterion to use would seem to be current, using both short circuit current and the current at a voltage near the operating voltage.A code has been developed to analyse the behaviour of solar cell modules in a partially shaded array, and to predict the position of hot spots. Comparison with experiment confirmed the accuracy of the code, subject to accurate input data on reverse bias characteristics of the modules and on shunt resistance.It has been found that bypass diodes do not act as simple switches. When a diode is in operation, the current is shared between the diode and the strings, and hot spots can develop even if the block is reverse biased on the diode voltage alone. Two kinds of hot spot can be generated: shaded cells in reverse bias, and nonshaded cells when string current is forced into them. So called equilibrium lines proved to be a waste of cabling.The work consist of the following four tasks: 1) Array Design Analysis / Test Method Evaluation; 2) Outdoor Module and Array Test Methods; 3) Study of Array Types and Effect of Orientation on Power Output; 4) Solar Irradiance Sensors and Calibration. Task 1 As a result of the action present uncertainties in many topics of PV array design and testing methods can be reduced. More standardized designs will increase reliability and make PV systems less expensive. The design guidelines develop for the most important points will be useful to anyone in design of small or large PV plants. Task 2 Outdoor module tests executed in laboratories located in different climatic areas on selected representative modules of present commercial production will allow a better understanding of their thermal behaviour, associated electrical parameters and a direct comparison of some state-of-art modules. The knowledge of a good relationship between air ambient temperature and module temperature will yield a much better test and IV extrapolation techniques and models. Tasks 3 The comparison of the energy collection among selected tracking systems and fixed tilt arrays performed for at least one year in very different climatic areas of Europe will also supply further elements for basic decision on array design and economic comparison. A much better mathematical model should result as well as energy prediction methods for use in economic analysis. Tasks 4 The results of the proposed campaign will ensure a clear decision upon the type and design of future radiation sensors for the monitoring of photovoltaic plants. The results will also allow for a sound scientific base to judge questions like degradation, calibration, and durability of sensors. The results should eliminate many uncertainties about Si vs. thermophile sensor differences, how to do an effective calibration at the PV site without removing the sensors, and allow better array performance prediction. Ámbito científico engineering and technologyelectrical engineering, electronic engineering, information engineeringelectronic engineeringsensorsengineering and technologyenvironmental engineeringenergy and fuelsrenewable energysolar energyphotovoltaicnatural sciencesmathematicsapplied mathematicsmathematical model Programa(s) FP2-JOULE 1 - Specific research and technological development programme (EEC) in the field of energy - non-nuclear energies and rational use of energy - (JOULE), 1989-1992 Tema(s) Data not available Convocatoria de propuestas Data not available Régimen de financiación Data not available Coordinador Conphoebus Scrl Aportación de la UE Sin datos Dirección Via Giacomo Leopardi 60 95127 Catania Italia Ver en el mapa Coste total Sin datos Participantes (10) Ordenar alfabéticamente Ordenar por aportación de la UE Ampliar todo Contraer todo CENTER FOR SOLAR ENERGY AND HYDROGEN RESEARCH BADEN-WÜRTEMBERG Alemania Aportación de la UE Sin datos Dirección Hessbruehlstrasse 21c 70565 STUTTGART Ver en el mapa Coste total Sin datos CIEMAT España Aportación de la UE Sin datos Dirección 28040 MADRID Ver en el mapa Coste total Sin datos Commissariat à l'Energie Atomique (CEA) Francia Aportación de la UE Sin datos Dirección Centre d'Études de Cadarache Sere-Ders 13115 SAINT-PAUL-LEZ-DURANCE Ver en el mapa Coste total Sin datos European Communities - Commission of the European Communities - Joint Research Centre (JRC) Italia Aportación de la UE Sin datos Dirección Via E. Fermi 1 21020 Ispra Ver en el mapa Coste total Sin datos Radiotelevisione Italiana Italia Aportación de la UE Sin datos Dirección Viale Mazzini 14 00195 Roma Ver en el mapa Coste total Sin datos Tecnologia Energia Ambiente Materiali Srl Italia Aportación de la UE Sin datos Dirección 00191 Roma Ver en el mapa Coste total Sin datos Telefunken Systemtechnik GmbH Alemania Aportación de la UE Sin datos Dirección Industriestraße 23-33 21107 Hamburg Ver en el mapa Coste total Sin datos Treble - Consultant Reino Unido Aportación de la UE Sin datos Dirección GU14 8PA Farnborough Ver en el mapa Coste total Sin datos UNIVERSITE CLAUDE BERNARD LYON 1 Francia Aportación de la UE Sin datos Dirección Boulevard du 11 Novembre 1918, 43 69622 VILLEURBANNE Ver en el mapa Coste total Sin datos WIRTSCHAFT UND INFRASTRUKTUR GMBH & CO PLANUNGS KG Alemania Aportación de la UE Sin datos Dirección SYLVENSTEINSTRASSE 2 MUENCHEN Ver en el mapa Enlaces Sitio web Opens in new window Coste total Sin datos