Abstarct: Abstract Today, energy consumption in the world is increasing rapidly. Therefore, supplying the energy needed by mankind has become a serious issue. One of the most common fuels used to meet this demand is fossil fuels, which are rapidly running out due to high consumption and limited resources, and in addition, the use of fossil fuels produces a lot of environmental pollutants. In this regard, the use of simultaneous production systems as a suitable solution can reduce the emission of harmful pollutants and reduce energy losses. For this purpose, in this research, a combined cycle consisting of a refrigeration cycle, an organic Rankine cycle and a molten carbonate fuel cell that uses a biomass gasifier as a stimulus has been studied from the energy and economic point of view, Then the effect of some performance parameters including steam generator temperature, current density of molten carbonate fuel cell, temperature and pressure of molten carbonate fuel cell, inlet temperature and pressure of organic Rankine cycle turbine and the amount of moisture in the fuel on the performance and leveled cost of energy of combined system and then in order to achieve the optimal conditions of system operation, single-objective optimization has been done. In this study, EES software was used to simulate and optimize the triple combined cycle. The power produced by the combined cycle reaches its highest level at a current density of 4750 amperes per square meter. By increasing the operating pressure of the molten carbonate fuel cell from 1 to 10 bar, the efficiency of the combined cycle increases by 12%. By increasing the pressure of the inlet flow to the turbine from 5 to 27 bar, the efficiency of the organic Rankine cycle increases from 15.42 to 23.7 percent. With a 40% increase in moisture content in the wood, the power produced by the molten carbonate fuel cell decreases by 1185 kilowatts. By increasing the operating temperature of the fuel cell, the temperature of the inlet flow to the turbine and the temperature of the steam generator of the refrigeration cycle, the leveled cost of the energy of the system decreases.