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Abstract. This research examines the utilization of exhaust energy in a 3x1 MW Gas Engine Power Plant in Bawean Island, Indonesia. The feasibility method is using water-lithium bromide (H2O-LiBr) as the absorption refrigeration technology. Furthermore, banana is also used for cold storage to overcome waste energy utilization. This system is used because of harness inexpensive energies source waste heat from gas and has no ecological dangers, such as the depletion of the ozone layer and global warming. The temperature of exhaust gas is 500oC. The cooling load for cold storage with thermodynamics models and consistent fluid properties, performance and size of cold storage were also investigated. The results obtained that higher output of cold storage is from the internal factor compared with the external factor. The area 300 m3 is applied for cold storage, 100 kg for a capacity load of banana with 5oC temperature, 85% humidity, 24 hours operation, 1292 W cooling load, and 371 TR. The experimental results obtained of the absorption refrigerant with Tevaporation is 5oC, 403 TR capacity and Qabsorption of 984 kW, Qgenerator of 1066 kW, Qevaporation of 1411 kW, Qcondenser of 1493 kW, with the coefficient of performance (COP) absorption is 1.32 and power consumption of 158.25 kW. Furthermore, after the calculation, analysis and field experimenting, the internal factor of cooling load is higher than the external factor sourced from banana cold storage. This phenomenon occur is maybe caused by the product to be cooled, following the cooling capacity is soaring. Thus, the exhaust energy in 3x1 MW Gas Engine Power Plant is successfully utilized by the absorption refrigerant system.