Aluminum coils can be used in the construction of both solar panels and wind turbines, but not as the primary material for energy conversion. In solar panels, aluminum is often used for framing and mounting structures due to its lightweight and corrosion-resistant properties. For wind turbines, aluminum is utilized in the manufacturing of certain components such as nacelle shells and towers, but the main rotor blades are typically made from composite materials for their strength and aerodynamic properties. Thus, while aluminum plays a supportive role in these renewable energy technologies, it is not the core material for capturing solar or wind energy.