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In this communication, two different cases, case A (collectors partially covered by PV modules; 30% PV) and case B (collectors fully covered by PV modules), connected in series have been considered for the study. The analysis has been based on the thermal energy, exergy, and electrical energy analysis. The whole study has been done by considering four weather conditions (a, b, c, and d types) for five different cities (New Delhi, Jodhpur, Bangalore, Mum- bai, and Srinagar) of India. Comparison of conventional flat- plate collectors (FPC) with case A and case B has also been done for New Delhi weather conditions. Based on numerical calculations, it has been found that the total annual gain is maximum for the Jodhpur city and minimum for the Srina- gar. The percentage variation between Jodhpur and Srinagar city is 25% and 23.4% for case A and case B, respectively. The annual gain for New Delhi, Mumbai, and Bangalore is nearly the same. The percentage variation between these three cities and Srinagar is 12%, 15.2%, and 10.4% for case A and 10.2%, 14%, and 9.3% for case B, respectively.

Study of Hybrid Photovoltaic Thermal (HPVT) Solar Water Heater at Constant Collection Temperature for Indian Climatic Conditions