Life-cycle analysis of photovoltaic systems in Hong Kong

This paper studied the payback period of grid-connected photovoltaic (PV) panels by the net present value method. The PV performance data were acquired by on-site measurements of two rooftop projects in subtropical Hong Kong. The sensitivity of various variables to the payback period was evaluated by the Extended Fourier Amplitude Sensitivity Test. The monetary payback periods were evaluated at different values of the most relevant variables and...