Query
We have performed the daylight simulations by considering the sky conditions as "Clear sky without sun". But after the review, we have received the comment asking us to perform the day light simulations with "overcast sky on march 21st noon". As the GRIHA manual refers to NBC 2005 which also talks only about clear sky conditions, can we stick to "Clear sky without sun "?
Solution
Yes, you may perform daylight simulation under "Clear sky without sun".