What is PD IEC TR 60904-14 about?
PD IEC TR 60904-14 is a part of multi-series standard. IEC 60904 provides guidelines for measurements of the maximum power (Pmax) output of single-junction photovoltaic (PV) modules and for reporting at standard test conditions (STC) in industrial production line settings. Such measurements typically:
- Record current-voltage (I-V) data while illuminating the module with a solar simulator;
- Are performed on 100 % of manufactured modules, to determine whether they meet nameplate requirements for various bins spanning different power output levels.
This type of measurement is widespread and performed in high volume by PV module manufacturers worldwide. As it is desirable to have consistent measurement practices across the industry, PD IEC TR 60904-14 describes the following features of such measurements:
- Essential elements, in order to provide a common understanding
- Common issues or complications
- Sources of error and uncertainty, including recommendations to minimize them
Who is PD IEC TR 60904-14 for?
PD IEC TR 60904-14 on production line measurement of PV devices is useful for:
- Manufacturers and suppliers of photovoltaic (PV) devices
- Dealers and importers of photovoltaic (PV) devices
- Testing houses/ service providers of photovoltaic (PV) devices
- Entities dealing with photovoltaic (PV) devices
Why should you use PD IEC TR 60904-14?
Performance evaluations of PV modules and systems, as well as performance translations from one set of temperature and irradiance to another, frequently rely on the use of linear equations.
PD IEC TR 60904-14 provides guidelines for measuring and reporting at standard testing conditions (STC) the maximum power (Pmax) output of single-junction photovoltaic (PV) modules.
PD IEC TR 60904-14 lays down the requirements for production line measurement methods, data analysis, and acceptance limits of results to ensure that guidelines will give satisfactory results.
PD IEC TR 60904-14 also gives you a procedure on how to correct for deviations of the short-circuit current ISC from the ideal linear dependence on irradiance (linearity) for PV devices, regardless of whether they are classified linear or non-linear.
PD IEC TR 60904-14 is a comprehensive guide for production line measurements and reporting of a maximum output of single-joint PV modules at standard conditions, which will improve quality and make the equipment more reliable and efficient.