A 25-year Sensitivity Analysis on PV-wind Hybrid Energy System to Supply Power of a Nearly-zero Energy Building: A TOPSIS Method Ranking
نویسندگان
1 Department of Architecture and Urban Planning , National University of Skills (NUS), Tehran, Iran
2 Department of Mechanical Engineering, National University of Skills (NUS), Tehran, Iran
doi
10.5829/ijee.2025.16.04.06چکیده
This study analyzes a hybrid solar-wind energy system for a nearly zero-energy building (nZEB) in Shahinshahr, Iran, over 25 years, using HOMER V2.81 software. It highlights the system's significance as a sustainable energy solution. The scientific contribution lies in its sensitivity analysis for optimizing hybrid systems and renewable energy use. Real-world data informs the methodology, and scenarios are ranked via the TOPSIS method. Among six parameters, “Emissions (kg/year)” has the highest influence (normalized weight: 0.52), while “Renewable Fraction (%)” and “Losses (kWh/year)” have the least (weight: 0.31). Results indicate that the grid-connected solar system, supplying 46% of energy at a cost of $58,726, is most suitable, preventing 119 tons of CO2 annually. The hybrid solar-wind system ranks second, despite achieving the highest renewable electricity and pollution reduction. The grid-connected wind system ranks third, offering the lowest converter losses and highest surplus electricity. This work serves as a roadmap for optimizing renewable energy systems and advancing nZEBs.
