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Table 3 Summary of the south-facing single-sloped BIPV system performance under seven pitched roof scenarios

From: Performance of single-sloped pitched roof cadmium telluride (CdTe) building-integrated photovoltaic system in tropical weather conditions

Description and the parameters Output values of the parameters studied in a single-sloped BIPV system
15° roof pitch 18° roof pitch 22° roof pitch 30° roof pitch 35° roof pitch 40° roof pitch 45° roof pitch
BIPV capacity as per the available area (kW) 7 7 7 7 7 7 7
In-plane irradiation (kWh/sq. m) 1780 1760 1740 1660 1610 1540 1470
Annual energy production (kWh) 9510 9410 9250 8830 8500 8130 7710
Angle of incidence losses (%) − 3 − 3 − 3.1 − 3.4 − 3.6 − 3.8 − 4.2
Temperature and low irradiance losses (%) − 8.6 − 8.6 − 8.6 − 8.7 − 8.8 − 8.9 − 9.1
Total losses (%) − 23.68 − 23.63 − 24.06 − 24.02 − 24.58 − 24.59 − 25.08
Performance ratio (%) 76.32 76.37 75.94 75.98 75.42 75.41 74.92