Raster Solar Radiation (Spatial Analyst) Calculates the incoming solar insolation for every raster cell of a digital surface model for the Earth or the Moon.
Solar insolation is calculated as the amount of solar radiation energy received per unit area during an amount of time and is measured in units, kilowatt hours per square meter (kWh/m2). Calculating insolation can be computationally intensive for large data extents and when calculating many time intervals. This may require a lot of computing power and hard disk space. You can perform preliminary runs with data at a coarser resolution or a subset of the data to ensure that the settings are correct before committing a run with the fullresolution data.
Read more: https://pro.arcgis.com/en/proapp/lat...