Refinery industries are mostly installed at the rural area or distant islands considering the hazardous conditions and transportation facilities. However, more often than not these islands or rural areas have no grid connections to facilitate electrification for these kinds of plants. Even if a grid extension is possible, the availability of power cannot be guaranteed in such rural areas. In any case, disruption in power continuity is not allowed for keeping every subsystem (e.g., heating, reaction subsystem) of the refinery industries under running condition. So, having a standalone, failure free and robust power generation system is a prerequisite criterion before starting up such plants in those areas. Diesel generator is the inevitable choice to meet the demand of electricity in such situation, although the cost of running a diesel generator dependent power system to support these sophisticated plants has been quite a challenge. However, with the available modern technologies, it is possible to think of a stable renewable power generation system that can ensure power availability at any time with the lowest possible operating cost. In this paper, a hybrid power generation system is modelled for a Condensate Fractionation Plant (CFP). Optimization, performance analysis and validation of the proposed model are assessed by using HOMER simulation tool