As Semi-Transparent Photovoltaic (STPV) windows are advancing within the building and window industry, the need for deeper understanding and quantification of key performance parameters such as the solar heat gain coefficient (SHGC), operating temperature profile and electrical power output is required. This study proposes an experimental methodology suited to the determination of the SHGC of STPV windows. The methodology presented utilizes an indoor solar simulator and calorimeter facility. A SHGC reduction from 2% to 20% was estimated, when the STPV windows were tested with no-load and with load applied at maximum power point.
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