The south façade of the BIPV container. Eight modules are installed with a small closed cavity between modules and insulation of 0–3 cm (the right part of the façade), the other half is mounted with ventilation at the back of the modules with a gap of 5–20 cm (the left part of the façade). Each colored dot represents a temperature sensor. The red dots are Pt100 sensors while the yellow dots are digital temperature sensors. The figure to the right shows a more detailed illustration of where the sensors are located on the modules.