Annual daylight in honeybee legacy vs honeybee plus

Hello friends
In two models of annual daylight simulations with exactly the same specifications, why are the results so different between Hb legacy and Hb Plus?
At Hb Plus, I set a time for analysis period, from 1/1 to 12/29, to simulate one year . But it is very different from the results of Hb legacy.
I have also considered 60 time steps on Hb Plus.
Does anyone know the reason for this difference?

annual daylight in hb legacy

annual daylight in hb plus

Hi @Aliarch. There are quite some reasons for that. One being Honeybeeplus uses ladybug sun positions to accurately calculate direct sunlight contribution in a scene. You can read this & thisfor clarifications.

1 Like