This study presents the development and thermodynamic assessment of an environmentally benign multigeneration system utilizing solar and biomass resources. The system integrates parabolic trough collectors (PTC), biomass gasification, Or-ganic Rankine Cycle (ORC), Kalina Cycle (KC), vapor absorption system (VAS), electrolyzer, and fuel cell to produce hydrogen, electricity, heating, cooling, and hot water. Thermodynamic analysis is conducted using the first and second laws, focusing on energy and exergy performance. The system is simulated using Engineering Equation Solver (EES), with R245fa and an ammonia–water mixture as working fluids in the ORC and KC, respectively. The proposed system consists of PTC and biomass capacities of 1295 kW and 553.6 kW, respectively, and generates a total power output of 964 kW, including 276.03 kW from the ORC and 145.28 kW from the KC. Post-expansion cooling from the KC provi-des 129.6 kW at –33.5 °C with 12.15 kW of exergy, while the VAS yields 18.4 kW at 5 °C with 0.24 kW of exergy. The PTC supplies 311.4 kW and 683.8 kW of thermal input to the ORC and KC, respectively. Overall, the system atta-ins energy and exergy efficiencies of 52.2% and 16.14%. The study demonstrates the feasibility and sustainability of inte-grating solar energy into biomass gasification, supporting its potential for clean energy generation.