the raster has <Columns_and_Rows>6703, 5785</Columns_and_Rows> and the <Cell_Size__X._Y_>3, 3 meters< , the model used is this ant the diffusion and transmission parameters are calculated separately (witch i did for my area). And this is the link to the tutorial that i used Calculate solar radiation—3D Cities | ArcGIS for Desktop As for the number 365000 my initial hypothesize was that it was the number of days times 1000 wh/ day /m2 witch would come to 365000 but that's a very big standardization seeing how the difference in irradiance varies by a significant margin especially in temperate areas my second idea was to take the average irradiance for each month multiply it by the number of days for each month and then use that number to divide the resulting raster from the area solar radiation tool (but i want to get some more inputs on these issue because it takes 5hours to processes a raster for my area) P.S My apologies for not adding more details in the first place
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