Programm Photovoltaik Ausgabe 2008 ... - Bundesamt für Energie BFE

Département fédéral de l’environnement,
des transports, de l’énergie et de la communication DETEC
Office fédéral de l’énergie OFEN
CENTRALE DI TEST ISAAC-TISO
QUALITÀ E RESA ENERGETICA DI MODULI
FOTOVOLTAICI
Annual Report 2007
Author and Co-Authors D. Chianese, A. Bernasconi, N. Cereghetti, A. Realini, G. Friesen,
E. Burà, I. Pola, K. Nagel
Institution / Company Scuola Universitaria Professionale della Svizzera Italiana SUPSI,
DACD, Istituto di Sostenibilità Applicata all’Ambiente Costruito
ISAAC-TISO
Address Via Trevano, CH – 6952 Canobbio
Telephone, E-mail, Homepage +41 (0) 58 666 63 56; domenico.chianese@supsi.ch;
www.isaac.supsi.ch
Project- / Contract Number 36508 / 151135
Duration of the Project (from – to) from October 2003 to December 2006
Date December 2007
ABSTRACT
The aim of the “ISAAC-TISO Test Centre” is to control the quality and reliability of photovoltaic modules
and to promote the use of BIPV products. The main activities are: indoor measurements carried
out with a class A flash sun simulator, outdoor analysis of the behaviour of PV modules under environmental
conditions and study of the main obstacles encountered by architects within the relatively
new photovoltaic building integration (BiPV) sector.
In April 2007 the seventh quality audit, for the ISO17025 accreditation maintenance of the sun simulator,
supervised by the Swiss Accreditation Service, was successfully passed.
During 2007 services for third-parties have increased significantly. A total of 342 indoor I-V measurement
were performed. In addition for several modules other measurements were executed: 22 determination
of the temperature coefficients; 21 I-V characterization at different irradiances (200, 400, 600
and 800 W/m²); 47 outdoor initial degradation (20-40 kWh/m²); I-V determination with multiflash
method; Visual inspection and insulation test according to IEC 61215; Electrical continuity test; Bypass
diode test. Moreover 4 energy rating comparison were performed.
In March 2006 a new 15 months test cycle (no.10) began and ended in June 2007. Stabilized power
of c-Si module after 15 months is on average 3.7% lower with respect to Pn and ranging from -0.7%
and -8.2% and thus all type of modules are in the warranty limits. Differences in annual energy production
[kWh/kWp], of 14 different module types, with nominal power Pn as reference, reach 10% but
are lower with respect to measured real power.
During 2007 collaborations with 6 institutes (either Universities and manufactures) have been
achieved for the installation of systems equipped with MPPT3K testing devices which were developed
by ISAAC-TISO.
The new information homepage on BIPV was completed with a database of BIPV product, BIPV
fastening and system example (see www.bipv.ch).
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