Modification to the Standard Reference Environment (SRE) for Nominal Operating Cell Temperature (NOCT) to Account for Building Integration

Abstract

In this paper we have investigated the use of modification to the ¿Standard Reference Environment¿ to account for Building Applied PV (BAPV) and Building Integrated PV (BIPV) applications. The values of the NOCT rise from the open-rack mounted to BAPV and finally to maximum values under BIPV conditions. The NOCT values for the thin-film glass/glass modules are generally higher than the crystalline glass/polymer modules for each of the three mounting options. The impact of changing the module operating condition from open-circuit to resistive load is a clear lowering of the NOCT value of approximately 3oC for the thin-film glass/glass open-rack mounting condition. The resistive load had practically no impact for the BAPV and BIPV cases. Further work is needed to determine if the results of this study will lead to the definitions of new ¿reference environments for building integrated products¿ or the application of some multiplication factor to the current NOCT value to account for the installation method.JRC.DG.F.8-Renewable Energy (Ispra