First accredited calibration laboratory for PV modules

CalLab is now officially certified to test cells and modules with an uncertainty of 1.6 %. (Photo: Fraunhofer ISE)
CalLab is now officially certified to test cells and modules with an uncertainty of 1.6 %. (Photo: Fraunhofer ISE)

The PV module calibration laboratory CalLab of Fraunhofer ISE is now the first lab worldwide to get accredited with a measurement uncertainty of 1.6 % under standard testing conditions.

The laboratory was accredited by the German accreditation body “Deutsche Akkreditierungsstelle GmbH” under the terms of the “General requirements for the competence of testing and calibration laboratories” (DIN EN ISO/IEC 17025:2005) to carry out photovoltaic calibrations.

Measurements of Fraunhofer’s CalLab are used by module producers to validate the measurements in their own production lines to ensure that their modules are labelled correctly. Besides the calibration of single PV modules, CalLab also offers module characterization in accordance with energy rating standard IEC 61853.

“We are very proud to have become the first accredited calibration laboratory for PV modules with a measurement uncertainty of 1.6% worldwide,” says Harry Wirth, CalLab’s Division Director of Photovoltaic Modules, Systems and Reliability.

Tanja Peschel / Fraunhofer ISE

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