TY - GEN
T1 - Carbon Payback Time (CPBT) and Energy Payback Time (EPBT) of Residential Solar Photovoltaic Repowering
AU - Nain, Preeti
AU - Yuan, Luyao
AU - Anctil, Annick
N1 - Publisher Copyright:
© 2024 IEEE.
PY - 2024
Y1 - 2024
N2 - As new photovoltaic (PV) technologies with better performance and lower prices are available in the market, the older modules with lower efficiency will likely be replaced much before the completion of their operational life (i.e., 25-30 years). However, before large-scale implementation of PV repowering, a better understanding of the environmental impacts and economic performance of various repowering scenarios is required. In this work, carbon and energy payback times of three PV repowering scenarios of a 3 kW residential PV system installed in Detroit, Michigan are evaluated. The considered technologies are Multi-crystalline Silicon (Multi-Si), Bifacial Passivated Emitter and Rear Cell (PERC), Perovskite Silicon-tandem (PST), and Tunnel Oxide Passivated Contact (TOPCon) PVs. CPBTs of the considered PV types ranged from 7 months to 13 months, while the EPBTs ranged between 4.5 and 7.4 months. These two-energy metrics of emerging technologies like TOPCon with high efficiency are expected to decrease as technologies mature. The annual electricity generation (237.28 kWh per m2) over 30 years of the repowering time is highest when modules are replaced every 10 years.
AB - As new photovoltaic (PV) technologies with better performance and lower prices are available in the market, the older modules with lower efficiency will likely be replaced much before the completion of their operational life (i.e., 25-30 years). However, before large-scale implementation of PV repowering, a better understanding of the environmental impacts and economic performance of various repowering scenarios is required. In this work, carbon and energy payback times of three PV repowering scenarios of a 3 kW residential PV system installed in Detroit, Michigan are evaluated. The considered technologies are Multi-crystalline Silicon (Multi-Si), Bifacial Passivated Emitter and Rear Cell (PERC), Perovskite Silicon-tandem (PST), and Tunnel Oxide Passivated Contact (TOPCon) PVs. CPBTs of the considered PV types ranged from 7 months to 13 months, while the EPBTs ranged between 4.5 and 7.4 months. These two-energy metrics of emerging technologies like TOPCon with high efficiency are expected to decrease as technologies mature. The annual electricity generation (237.28 kWh per m2) over 30 years of the repowering time is highest when modules are replaced every 10 years.
KW - Carbon payback time
KW - Energy payback time
KW - PV replacement
KW - Solar repowering
UR - http://www.scopus.com/inward/record.url?scp=85211620322&partnerID=8YFLogxK
U2 - 10.1109/PVSC57443.2024.10749332
DO - 10.1109/PVSC57443.2024.10749332
M3 - Conference contribution
AN - SCOPUS:85211620322
T3 - Conference Record of the IEEE Photovoltaic Specialists Conference
SP - 1221
EP - 1224
BT - 2024 IEEE 52nd Photovoltaic Specialist Conference, PVSC 2024
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 52nd IEEE Photovoltaic Specialist Conference, PVSC 2024
Y2 - 9 June 2024 through 14 June 2024
ER -
