Module manufacturers sell their products all over the world.
And yet, since unified standards are lacking, a location-specific, direct product comparison has not been possible. This will change at the end of September. The Fraunhofer Institute for Wind Energy and Energy System Technology (IWES) from Kassel, Germany, and its European project partners of the Network of Excellence DERlab have developed standards and measuring methods for long-term tests of solar modules.
For the first time the researchers will present this new service for module manufacturers within the world's largest solar energy conference EU PVSEC (European Photovoltaic Solar Energy Conference & Exhibition) from 21 to 24 September in Hamburg, Germany.
The quality standard developed by the DERlab partners (stands for European Distributed Energy Resources Laboratories) is based on standardised test procedures and data formats as well as evaluation services and uniform reports. "We have harmonised our long-term measurements for solar modules all over Europe", explains Dr. Philipp Strauss, Division Director of Systems Engineering and Grid Integration at the Fraunhofer IWES and spokesman of the board of DERlab e.V.
"For our measurements, we do not only examine the location-specific yield, but also the influence that ambient conditions have on the module output." In field tests, running in parallel, the researchers measure the solar modules under real conditions at the most diverse European locations. A further module serves as a reference and is stored in the dark.Very High Measuring Accuracy
The Fraunhofer IWES is one of 60 institutes of the Fraunhofer-Gesellschaft, which is the leading supporting organisation for applied research facilities in Germany.
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