PV Module Performance Tests Brochure

Services Performance Testing of PV Modules in Outdoor ConditionsPhotovoltaic modules can be tested at several DERlab test sites located in several different countries. The energy yields of the modules are measured according to DERlab technical guidelines on long-term photovoltaic outdoor tests. The customer will be provided with the measured data and can opt for the additional evaluation service. DERlab technical guidelines describe the testing procedures as well as requirements for location and measurement equipment. The guidelines are available on the DERlab website.DERlab Testing procedure• Two modules are measured in parallel ? eld tests in MPP• In accordance with the location, the modules are installed at the optimal tilt angle.• The measurement interval is 15 seconds.• Characteristic curves are measured in intervals > one minute.• The period of measurement is at least one year.Evaluation service• Annual energy yield• Characteristic data (IMPP, UMPP)• I-V curves• Module ef? ciency• Temperature coef? cient • Meteorological data (irradiation, temperature etc.)• Customer-speci? c evaluationEnergy yield of solar PV modules can be tested at DERlab laboratories.Testing the solar PV modules in various climatic and geographic locations for a longer period of time is essential to determine the real annual energy output of the modules.DERlab follows the technical guidelines on long-term photo-voltaic outdoor tests that comple-ment the existing testing stand-ards.Submit your inquiry on www.der-lab.net/request-form.phpwww.der-lab.netCONTACTEuropean Distributed Energy Resources Laboratories (DERlab) e. V.c/o Fraunhofer IWESKönigstor 5934119 Kassel / GermanyPhone: +49 561 7294 133Fax: +49 561 7294 400Email: of? ce@der-lab.netDERlab is the association of leading labora-tories and research institutes in the ? eld of distributed energy resources equipment and systems.Picture: Fraunhofer IWES | Frank Hellwig