TY - GEN
T1 - Spatial Mapping of Front and Rear Irradiation of a Horizontal Single Axis Tracking PV System with Multiple Row-to-Row Pitches
AU - Abdelrahim, Mohamed
AU - Kivambe, Maulid
AU - Elgaili, Mohamed
AU - Figgis, Benjamin
AU - Pillai, Dhanup
AU - Abdallah, Amir
N1 - Publisher Copyright:
© 2025 IEEE.
PY - 2025/6/13
Y1 - 2025/6/13
N2 - This study presents a spatial mapping of front and rear irradiation of a two-in-portrait (2P) Horizontal Single Axis Tracking System (HSAT) PV system with multiple tracker pitches installed in Qatar's desert environment. Based on one year of field measurements, the average seasonal front daily plane-of-array (POA) irradiation ranged between 5.3-5.9 kWh/m2 /day during winter and 8.75-8.92 kWh/m2/day in summer months. Over one year, HSAT systems received 15.0% higher front POA irradiation compared to South-facing 22° fixed-tilt surfaces. Between tracker pitches of 8.7 to 12.0m, rear POA Irradiation was 5.5-6.5% higher per meter. Wider pitches exhibited greater rear-side irradiation uniformity, with edge-to-center irradiation differences below 8%, while the narrowest pitch had a rear-side irradiation edge-to-center non-uniformity exceeding 11%. The ratios of rear-to-front irradiation increased with tracker pitch, measuring 10.3%, 12.0% and 12.8% at tracker pitches of 8.7m,10.7m and 12.7m respectively.
AB - This study presents a spatial mapping of front and rear irradiation of a two-in-portrait (2P) Horizontal Single Axis Tracking System (HSAT) PV system with multiple tracker pitches installed in Qatar's desert environment. Based on one year of field measurements, the average seasonal front daily plane-of-array (POA) irradiation ranged between 5.3-5.9 kWh/m2 /day during winter and 8.75-8.92 kWh/m2/day in summer months. Over one year, HSAT systems received 15.0% higher front POA irradiation compared to South-facing 22° fixed-tilt surfaces. Between tracker pitches of 8.7 to 12.0m, rear POA Irradiation was 5.5-6.5% higher per meter. Wider pitches exhibited greater rear-side irradiation uniformity, with edge-to-center irradiation differences below 8%, while the narrowest pitch had a rear-side irradiation edge-to-center non-uniformity exceeding 11%. The ratios of rear-to-front irradiation increased with tracker pitch, measuring 10.3%, 12.0% and 12.8% at tracker pitches of 8.7m,10.7m and 12.7m respectively.
UR - https://www.scopus.com/pages/publications/105016186698
U2 - 10.1109/PVSC59419.2025.11132624
DO - 10.1109/PVSC59419.2025.11132624
M3 - Conference contribution
AN - SCOPUS:105016186698
T3 - Conference Record of the IEEE Photovoltaic Specialists Conference
SP - 960
EP - 962
BT - 2025 IEEE 53rd Photovoltaic Specialists Conference, PVSC 2025
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 53rd IEEE Photovoltaic Specialists Conference, PVSC 2025
Y2 - 8 June 2025 through 13 June 2025
ER -