Abstarct: Abstract Comprehensive 4E Analysis of a Tri-Generation System Driven by a Gas Turbine with Integrated Cooling, Compressed Air, and Cold Storage.This study presents a comprehensive 4E (Energy, Exergy, Economic, and Environmental) analysis of a tri-generation system consisting of a gas turbine-driven power unit integrated with an inlet air cooling system, a modified vapor compression refrigeration cycle, a compressed air system, and a cold storage unit. The system also incorporates renewable energy sources to enhance its sustainability. A thermodynamic analysis was conducted to evaluate the energy and exergy performance of the proposed system, followed by an extensive parametric study to assess its operational characteristics. The investigated parameters include pressure ratio variations, turbine inlet temperature, excess air mass flow rate, evaporator temperature, generator temperature, compressed air compression ratio, final system operating pressure, and the evaporator and condenser temperatures in the modified refrigeration cycle, along with the impact of natural gas price fluctuations. For accurate simulation and analysis, the study employs EES and MATLAB software. The results indicate that the system is capable of producing 308.761 MW from the gas turbine, 93.664 MW from the heat recovery steam generator (HRSG), 56.001 MW of heating, and 55.758 MW of cooling, achieving an overall efficiency of 56%. The integration of this system with an absorption chiller and cold storage significantly enhances its performance during peak demand periods. Exergy analysis reveals that the highest exergy destruction rate occurs in the combustion chamber, accounting for 259.866 MW (74.53%), highlighting the necessity of optimizing this component. From an economic perspective, the simple payback period (SPP) and discounted payback period (DPP) were calculated as 7.955 years and 14.6 years, respectively, with an annual fuel cost savings of approximately $36.96 million. Additionally, from an environmental standpoint, the proposed system demonstrates a significant reduction in CO₂ emissions, decreasing from 343.6 g/h in conventional systems to 171.3 g/h, thereby contributing to enhanced environmental sustainability.