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The generation of waste has increased throughout the years of growing industrialization and urbanization. Despite the fact that there are facilities and services that provide treatment, a significant amount of cost must be spent to ensure that the waste is disposed of or treated. This lead to increase the use of Plasma Pyrolysis, Incineration, Anaerobic Digestion, and Gasification to treat the waste while generate energy from the treatment. In order to create a sustainable environment, it is recommended to utilize the waste heat from these processes. In plasma pyrolysis process, there is no additional fuel will be used in treating the waste. The waste heat from plasma pyrolysis will be used to generate power in an Organic Rankine Cycle (ORC) process. However, there is no emerging study has been done on how to generate the electricity from the Plasma Pyrolysis process. The electricity generation from the Plasma Pyrolysis waste heat will be conducted by utilizing the ASPEN HYSYS V10.0 software. Iso-butane and R134a have been determined to have the highest energy efficiency, with highest output powers in between those of other working fluid systems. At a source temperature of 800℃ and pressure 1atm, iso-butane and R134a are observed to have 13.01% and 16.12% energy efficiency, respectively. The R134a and iso-butane fluid gives a better performance in terms of thermal efficiency relative to the other fluids with the maximum power output 2.6190 kW and 2.9320 kW, respectively. This study indicated that the selection of working fluids and the tuning of the operating parameters had a significant potential to improve the performance of the power output of ORC system. [ABSTRACT FROM AUTHOR]