Accepted: 13 May 2022 This study deals with an integrated solar combined cycle systems (ISCCS) simulation. The ISCCS presents a cogeneration of the Parabolic Trough Solar collector (PTC) system and the Rankine power cycle. The PTC system is employed to ensure stable thermal energy which is required to operate a steam turbine (with three stages), which is designed to produce enough electrical power (medium scale). The performance of the ISCCS is simulated and evaluated by using the TRNSYS software. This system is being considered for installation in Irbid, Jordan, and a comparison study is being conducted to determine the performance of the ISCCS–medium scale during the winter and summer seasons. The results show that the ISCRCS system's efficiency is 14.3% in winter (January 1) and 21.2% in summer (August 1), with 4.48 MW of electrical power produced in winter (January 1) and 4.05 MW produced in summer (August 1).