Solar Position Grasshopper Component
I developed this custom Grasshopper component that is able to calculate the position of the sun in the sky for a given day, time, and position on the earth. The component works by using the same formulas used by the NOAA Solar Position Calculator. The video below shows a simple shading study example created using this custom component.
The videos below show another example of the component being used to analyze the shading of existing buildings.