The Institute for Standardization of Bosnia and Herzegovina, through its Technical Committee BAS/TC 56, Conventional and alternative sources of electricity, has published the second edition of the BiH standard BAS EN IEC 61853-3:2023, Photovoltaic (PV) module performance testing and determination of power and energy ratings, - Part 3: Energy determination of PV modules, which is a translation of the English version of EN IEC 61853-3:2018.

BAS EN IEC 61853-3:2023 standard, which is part of the IEC 61853 series, describes the calculation of PV module energy rating values. IEC 61853-1 describes requirements for evaluating PV module performance at various temperatures and irradiances in terms of power (watts) rating. IEC 61853-2 describes test procedures for determining module temperature from irradiance, ambient temperature and wind speed, a method for measuring angle of incidence effects, and spectral responsivity. IEC 61853-4 describes the standard reference climatic profiles (standard environmental data sets) that are used for calculating energy rating values.

The purpose of this document is to define the methodology to determine the PV module energy output (watt-hours) and the climatic specific energy rating (dimensionless) for a complete year at maximum power operation for the reference climatic profile(s), given in IEC 61853-4. It is applied to determine a specific module output in standard reference climatic profile for the purposes of comparison with rated modules.

The methodology used does not take into account either progressive degradation or transient behaviour such as light induced changes and/or thermal annealing. This document applies to mono-facial modules.

The original texts of the standard were prepared by the International Technical Committee IEC TC 82, Solar photovoltaic energy systems.