DIN EN 61853-2:2017-05

The IEC 61853 series describes the requirements for evaluating the performance data of PV modules in terms of power rating (in watts) over a range of irradiance levels and temperatures. IEC 61853-2 describes the methods for measuring the influence of the angle of incidence on the power, the estimation of the module temperature as a function of irradiance, ambient temperature and wind velocity, and the influence of spectral response on the module performance data. IEC 61853-3 describes the calculations for the energy measurements of PV modules (in watt hours). The standard time intervals and weather conditions that can be used for the calculation of energy ratings are described in IEC 61853-4. The purpose of this part of IEC 61853 is to define measurement procedures for measuring the effects of angle of incidence of the irradiance on the output power of the device, to determine the operating temperature of a module for a given set of ambient and mounting conditions and measure spectral responsivity of the module. A second purpose is to provide a characteristic set of parameters which will be useful for detailed energy predictions. The described measurements are required as inputs into the module energy rating procedure described in IEC 61853-3. The responsible committee is DKE/K 373 "Photovoltaische Solarenergie-Systeme" ("Photovoltaic solar power systems") of the DKE (German Commission for Electrical, Electronic and Information Technologies) at DIN and VDE.