The efficiency of solar panels depends on their surface temperature. In short, the higher the module temperature, the lower its efficiency.
The temperature at which solar modules are usually tested is most often 25 ° C. In practice, on a sunny day, the surface of the modules is much hotter! If you install the sensor on the side of the solar panel, which is facing the roof, you can see that if the module is placed on a dark surface, it heats up quite a lot.
Ordinary dark colored roofing absorbs solar radiation and can heat up to 90 ° C. The surface of green roofs never heats up so much, up to a maximum of 30-35 ° C.
This observation is graphically depicted on the graph, which shows the rise in temperature on the surface of solar panels facing the roof, from 5.45 to 19.30 on a sunny July day. The temperature of the modules above the dark bituminous materials quickly reached 40 ° C, while the module located on the green roof had a temperature of 27 ° C, the same as the ambient air.
ZinCo's portfolio includes a technology solution that combines the virtues of green roofs and solar energy - the Solar Vert © system. Material provided by the company "Tsinko RUS"
