Power Measurement of MICROMORPH Tandem Modules—An Overview

Standardized power measurements of MICROMORPH tandem photovoltaic (PV) modules based on a spectrally tuneable flasher have been developed over the recent years at TEL Solar. The accurate calibration procedure includes all steps from a pair of primary calibrated component reference cells to the secondary calibrated reference module. A proper performance measurement under fully balanced spectral conditions is the starting point where the followed steps of cell limitation investigation and spectral responsivity measurement, both derived on large modules (Gen.5), are added. An improved hardware setup with a dynamic light-emitting-diode (LED) backlight array and a set of bandpass filters allow us to produce uniform LED floodlight and quasi-monochromatic light for the spectral study of MICROMORPH modules. Spectral light quality and distribution is analyzed by an array spectrometer system of high accuracy to characterize pulsed sources. Besides full spectral mismatch consideration, all other aspects of transient effects are covered by the multiflash approach in use.