The shade effect of a rooftop photovoltaic (PV) collector on a roof is usually ignored in building energy simulation in Transient System Simulation (TRNSYS) software. This disregard is due to either the unavailability of a suitable shading component in the simulation software or to an assumption that the shade on opaque surfaces, such as roofs, has small impact on the indoor temperature and the subsequent heating and cooling energy usage. However, for a relatively large collector area, ignoring the collector shadow on the roof may produce inaccurate results.
In this paper, a novel component is developed in MATLAB to simulate the shade effect of a collector using TRNSYS. This is a conference paper from the 3rd International Renewable and Sustainable Energy Conference in Morocco, 2016.