Estimation of grid feed in electricity from roof integrated Si-amorph PV system based on orientation, tilt and available roof surface area

This paper presents, a study on grid feed-in electricity estimations from a roof integrated PV system. The system is configured with Si-amorph PV array, inverter, utility meter and electric power grid. Parameters that would influence PV electricity like roof or PV array orientation (north east, east, south east, south, south west, west, north west, and north), tilt angle (0°, 15°, 30°, 45°, 60°, 75°, and 90°), and available roof surface area (2 Sq. m, 10 Sq. m, 20 Sq. m, 50 Sq. m, 100 Sq. m, 200 Sq. m, 500 Sq. m and 1000 Sq. m) were considered during this study. Based on these selected parameters 448 combinations of grid integrated PV systems were studied for Hyderabad City in Telangana State of India. All 448 combination were analyzed in PV-Online simulation tool and the results were assessed for best orientation and tilt angle. Results includes power of the PV-field at STC in kW as per the roof or PV array area in Sq. m, grid feed-in electricity as per eight PV array orientations with respect to different tilt angles, performance ratios (PR's) and grid feed-in payment for 448 combinations. Apart from this, grid feed-in electricity and performance ratios (PR's) were compared between horizontal and vertical roof mounted PV systems with all eight orientations.