As per WHO report most of the vaccines likes Diphtheria, Tetanus, Pertussis, Hepatitis A, Hepatitis B, Hib, Influenza, Meningococcal, Pneuernocqccal, Rotavirus are required to be preserved at refrigeration temperature such as (2 0 C to 8°C). When the vaccines are preserved above or below the required temperature, the potency of a vaccine is lost resulting in loss of money, as vaccines are costly. In remote areas where electricity is not available, preservation of vaccines becomes a very serious

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... concern. In order to provide the means to preserve the vaccines in remote areas, a portable refrigeration system working on photovoltaic effect has been designed and developed. The refrigeration system developed is of the dimension 24.50″×21.25″×14″ and has the capacity of 30 liters capable of maintaining the evaporator temperature of 0 0 C to 8°C for 9hrs to 10 hrs once the battery is charged. The time taken by the battery to be charged is of the order 6 hrs to 8 hrs. The coefficient of performance (COP) of a developed refrigeration system is 3.19 and the payback period as per techno-economic analysis is found to be 8 years 5 month 6 days.