In utility vehicles (e.g. trucks and buses), particularly light and thin PV modules are need-ed so that they do not limit the load capacity. The lightweight modules developed at Fraunhofer ISE are particularly well suited for refrigerated trucks with their large roof areas. The solar cells can be laminated onto an insulating panel or added to existing structures.
As part of a research project, Fraunhofer ISE equipped several trucks with radiation sen-sors to record the real solar yield potential in the utility vehicle sector. An average elec-tricity yield of 150 kWh/m² over the course of a year was determined. An electric truck (40t) with a photovoltaic roof area of app. 38 m² could thus travel app. 5000 km per annum on the PV electricity it generated.
Requirements on module integration for trucks:
- light and efficient modules
- resistant to dynamic mechanical loads