A Measurement Framework for Assessing Temperature and Power Output on Biosolar Roof Systems

Abstract Biosolar roofs, which combine photovoltaic (PV) panels with green roof, offer a way to connect renewable energy generation with benefits such as reduced surface temperatures and improved urban microclimates. Despite growing interest, practical field data from Central Europe remain limited. This study introduces a measurement strategy developed at the Faculty of Civil Engineering, TUKE, to evaluate thermal and electrical behavior of systems. The setup includes two identical PV panels with the same orientation and tilt-one installed above a sedum green roof and the other above an asphalt roof. Temperature sensors placed on the panel surfaces, beneath the modules, and on both roof types record thermal conditions, while weather data are collected from a nearby station. Electrical performance is monitored through periodic I–V curve measurements using a portable tester. The methodology provides a consistent basis for comparing roof types and supports future simulation and BIM-based modeling in temperate climates.