A ۲۵-years Sensitivity Analysis on PV-wind Hybrid Energy System to Supply Power of a Nearly-zero Energy Building: A TOPSIS Method Ranking

This study analyzes a hybrid solar-wind energy system for a nearly zero-energy building (nZEB) in Shahinshahr, Iran, over ۲۵ years, using HOMER V۲.۸۱ 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: ۰.۵۲), while “Renewable Fraction (%)” and “Losses (kWh/year)” have the least (weight: ۰.۳۱). Results indicate that the grid-connected solar system, supplying ۴۶% of energy at a cost of ۵۸,۷۲۶, is most suitable, preventing ۱۱۹ tons of CO۲ 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.

کلیدواژه ها:

energy analysis ، Homer software ، MCDM method ، Pollutant Emissions ، Sensitivity analysis