# Package for DayLighting analysis workflow **URL:** \ **Category:** Packages\ **Tags:** dynamo, solaranalysis, package\ **Created:** [April 18, 2023, 12:12pm UTC](https://forum.dynamobim.com/t/package-for-daylighting-analysis-workflow/88671 "2023-04-18T12:12:27Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![Hedi2772](https://avatars.discourse-cdn.com/v4/letter/h/e495f1/32.png) [@Hedi2772](https://forum.dynamobim.com/u/Hedi2772)\ **Post date:** [April 18, 2023, 12:12pm UTC](https://forum.dynamobim.com/t/package-for-daylighting-analysis-workflow/88671/1 "2023-04-18T12:12:27Z")
Hi all, I have a question regarding finding packages related to Daylight analysis in Dynamo. What are the most suitable packages for Daylight analysis?? I have seen some works but I can not find related packages, or any other ways as alternatives. ![Workflow-01](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/6/5/65b023b40c749fa1190f08ff753d143908d5ac02.jpeg) I want to do daylighting analysis based on this above Model but i couldnt find more than half of the nodes, can some body tells me alternatives for these nodes? For example, how can I choose Perez Sky Model in Dynamo? ![SkyModel.PNG](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/e/3/e3103dbdc06e34602a1776e774f4e738edd01550.jpeg) ![CloudRenderData](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/f/a/fa5b54fcb7f6490540073c55639984defbc70bc4.png) ![DaylightingResults.PNG](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/a/4/a457b33420735facae478f8044dcbb01870d3bd4.jpeg) ---
**Author:** ![jacob.small](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/jacob.small/32/161030_2.png) [@jacob.small](https://forum.dynamobim.com/u/jacob.small)\ **Post date:** [April 18, 2023, 1:04pm UTC](https://forum.dynamobim.com/t/package-for-daylighting-analysis-workflow/88671/2 "2023-04-18T13:04:45Z")
There is a solar analysis package which may do what you are after. You can also use vasa for shadow studies. ---
**Author:** ![Hedi2772](https://avatars.discourse-cdn.com/v4/letter/h/e495f1/32.png) [@Hedi2772](https://forum.dynamobim.com/u/Hedi2772)\ **Post date:** [April 26, 2023, 7:38am UTC](https://forum.dynamobim.com/t/package-for-daylighting-analysis-workflow/88671/3 "2023-04-26T07:38:02Z")
Dear Jacob, Thanks for your answer, I have tried to install the “Solar Analysis For Dynamo” package but nothing does show up. Now I am stuck in this daylighting analysis. Maybe, it is because of the version of Revit 2022 and Dynamo 2.12 that I use, as I read the Daylighting workflow packages are no longer supported in Dynamo after Revit 2019. ---
**Author:** ![jacob.small](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/jacob.small/32/161030_2.png) [@jacob.small](https://forum.dynamobim.com/u/jacob.small)\ **Post date:** [April 26, 2023, 7:42am UTC](https://forum.dynamobim.com/t/package-for-daylighting-analysis-workflow/88671/4 "2023-04-26T07:42:29Z")
Should work. How did you install it? ---
**Author:** ![Hedi2772](https://avatars.discourse-cdn.com/v4/letter/h/e495f1/32.png) [@Hedi2772](https://forum.dynamobim.com/u/Hedi2772)\ **Post date:** [April 26, 2023, 8:20am UTC](https://forum.dynamobim.com/t/package-for-daylighting-analysis-workflow/88671/5 "2023-04-26T08:20:58Z")
From the package Tab and search for a package button I can see the package in Dynamo → preferences → package manager but i can not see in add-on tab so can not use it, I think it is a bug. ---
**Author:** ![jacob.small](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/jacob.small/32/161030_2.png) [@jacob.small](https://forum.dynamobim.com/u/jacob.small)\ **Post date:** [April 26, 2023, 8:32am UTC](https://forum.dynamobim.com/t/package-for-daylighting-analysis-workflow/88671/6 "2023-04-26T08:32:27Z")
What is the directory you installed it to? Can you see the package files there? Is any package trying to load off a network? Could you have multiple of the same version? ---
**Author:** ![Hedi2772](https://avatars.discourse-cdn.com/v4/letter/h/e495f1/32.png) [@Hedi2772](https://forum.dynamobim.com/u/Hedi2772)\ **Post date:** [April 26, 2023, 8:48am UTC](https://forum.dynamobim.com/t/package-for-daylighting-analysis-workflow/88671/7 "2023-04-26T08:48:41Z")
Yes, yes it was my mistake, I have changed something in download directory and it causes this problem. Many thanks for your help, I will try to replace the workflow nodes with the solar analysis package nodes.