Designing and building windmills are crucial steps in capturing renewable wind energy. By converting wind into electricity, windmills help reduce greenhouse gas emissions and support sustainable growth. A well-designed windmill leverages aerodynamics, material science, and environmental factors to optimize energy capture and efficiency. Fabrication involves creating essential components like blades, nacelles, and towers with advanced materials and engineering methods to ensure durability and reliability. Research into windmill design and fabrication is crucial for advancing renewable energy and promoting a low-carbon, sustainable future. By improving windmill efficiency and reducing production costs, this research makes wind energy more affordable and accessible. Innovations in aerodynamics, materials, and manufacturing techniques enhance windmills’ resilience, performance, and adaptability across diverse environments. Furthermore, this research supports energy independence by broadening energy sources and reducing dependency on fossil fuels. The methodology for windmill design and fabrication includes several essential steps. First, wind patterns and site conditions are evaluated to determine the best turbine specifications. During the design phase, aerodynamic modeling is used to shape blades for optimal energy capture, while materials are chosen to balance strength and lightness. Aluminum, Stainless steel, Carbon Fiber. Density (kg/m2), Young’s modulus (Gap), Yield Strength (Map), Cost (Rs/kg). Aluminum ranks at the top of the table, while carbon fiber is positioned at the bottom.