In the present study, an attempt has been made to evaluate the effect of packing factor of photovoltaic (PV) module on the performance of hybrid photovoltaic-thermal (PVT) greenhouse solar dryer. Different parameters have been evaluated for climatic condition of Indian Institute of Technology, New Delhi (28-350N, 77-120E, 216 m above MSL), India. For the analysis solar radiation and ambient air temperature have been taken from IMD (Indian Meteorological Department) Pune. Further thermal modelling has been done for the PVT greenhouse dryer and different parameter like crop temperature, greenhouse temperature, outlet air temperature and cell temperature have been calculated with variation of packing factor of PV module by the help of MATLAB program. Further effect of packing factor on thermal energy, electrical energy, overall thermal energy, cell efficiency have been evaluated. Variation in thermal energy, electrical energy, and overall thermal energy with respect to packing factor found to be 3.66-2.05, 0-0.92 and 3.66-4.47 kWh respectively for a typical day of June. © 2016 IEEE.