What factor do sun path charts depend on?

Sun path charts are primarily dependent on latitude because they illustrate the sun's trajectory across the sky from various locations on Earth. The position of the sun at any given time is affected by where you are located in terms of latitude. For different latitudes, the angle and height of the sun in the sky changes throughout the year, which leads to variations in solar exposure and thus impacts photovoltaic system design and optimization.

While time of day, season, and even cloud cover can influence sunlight availability and intensity, sun path charts themselves focus specifically on the geometric path the sun takes across the sky based on the observer's latitude. This is fundamental for understanding how solar energy systems will perform in different geographical areas throughout the day and the year.