# Solar Analysis node issue **URL:** \ **Category:** Packages\ **Created:** [February 12, 2015, 6:17am UTC](https://forum.dynamobim.com/t/solar-analysis-node-issue/1064 "2015-02-12T06:17:50Z")\ **Posts on this page:** 13\ **Page:** 1
**Author:** ![Vincenzo\_Panasiti1](https://avatars.discourse-cdn.com/v4/letter/v/74df32/32.png) [@Vincenzo\_Panasiti1](https://forum.dynamobim.com/u/Vincenzo_Panasiti1)\ **Post date:** [February 12, 2015, 6:17am UTC](https://forum.dynamobim.com/t/solar-analysis-node-issue/1064/1 "2015-02-12T06:17:50Z")
Hello everyone, It’s severapl days that I try to understand how the SolarAnalysis node works. Unfortunately I didn’t find anything about it except the workshop at the Acadia 2014. Someone can help me? I select a surface and some shading surface but nothing happen… the only error I find is: Warning: No function called %get\_Results could be found. Please check the name of the function. ![Capture](https://cdck-file-uploads-us1.s3.dualstack.us-west-2.amazonaws.com/flex022/uploads/dynamobim/original/2X/5/57a27059bfcf1178358ef9816db2fe29aafbdd75.jpg)         Thanks to all   ---
**Author:** ![Andreas\_Dieckmann](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/andreas_dieckmann/32/365_2.png) [@Andreas\_Dieckmann](https://forum.dynamobim.com/u/Andreas_Dieckmann)\ **Post date:** [February 12, 2015, 8:29am UTC](https://forum.dynamobim.com/t/solar-analysis-node-issue/1064/2 "2015-02-12T08:29:23Z")
I’ve posted a workflow that (among other things) uses solar radiation analysis here: > **[andydandy74/ClockworkForDynamo](https://github.com/andydandy74/ClockworkForDynamo/tree/master/workflow_samples/0.7.x/Solar%20Radiation%20To%20Panels)** > > A collection of 400+ custom nodes for the Dynamo visual programming environment - andydandy74/ClockworkForDynamo ---
**Author:** ![Vincenzo\_Panasiti1](https://avatars.discourse-cdn.com/v4/letter/v/74df32/32.png) [@Vincenzo\_Panasiti1](https://forum.dynamobim.com/u/Vincenzo_Panasiti1)\ **Post date:** [February 12, 2015, 11:01am UTC](https://forum.dynamobim.com/t/solar-analysis-node-issue/1064/3 "2015-02-12T11:01:18Z")
Great!!! Thanks you very much…I’ll give you some feedback. ---
**Author:** ![Paul\_Wintour](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/paul_wintour/32/9381_2.png) [@Paul\_Wintour](https://forum.dynamobim.com/u/Paul_Wintour)\ **Post date:** [March 12, 2015, 12:07am UTC](https://forum.dynamobim.com/t/solar-analysis-node-issue/1064/4 "2015-03-12T00:07:43Z")
I’m having issues with the solar analysis node. Firstly, I am getting a ‘could not find the weather file’ error. The weather.FromLocation node seems to be working so I don’t know why it is failing. Secondly, in Revit I have the sun set to 9am 21 June 2015 (Sydney time - UTC+10). But when I run the SunSetting.StartDateTime is shows 20 June 2015 at 11pm. It is obviously showing the date/time at UTC. Is there a way to get it to show at the current time zone? Otherwise its just confusing.   ![Solar error](https://cdck-file-uploads-us1.s3.dualstack.us-west-2.amazonaws.com/flex022/uploads/dynamobim/original/2X/e/eac71d0b289fba0a00a151025bbfb0da506f3fb6.jpg)     ---
**Author:** ![Paul\_Wintour](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/paul_wintour/32/9381_2.png) [@Paul\_Wintour](https://forum.dynamobim.com/u/Paul_Wintour)\ **Post date:** [March 12, 2015, 5:22pm UTC](https://forum.dynamobim.com/t/solar-analysis-node-issue/1064/5 "2015-03-12T17:22:03Z")
anyone? ---
**Author:** ![Paul\_Wintour](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/paul_wintour/32/9381_2.png) [@Paul\_Wintour](https://forum.dynamobim.com/u/Paul_Wintour)\ **Post date:** [March 12, 2015, 7:09pm UTC](https://forum.dynamobim.com/t/solar-analysis-node-issue/1064/6 "2015-03-12T19:09:10Z")
I’ve managed to get Dynamo to read the weather input. I’m not sure why it wasn’t working. I guess restarting Revit/Dynamo seemed to do the trick. But now I’m having problems visualising the results. All the info seems to be flowing correctly. Active view is set but nothing shows. Does the view need to have a special setting - shadows on/off, shaded, etc.? Andreas - I tried to download your Github file but it wouldn’t open - both the Revit file and the Dynamo script.   ![Solar error 2](https://cdck-file-uploads-us1.s3.dualstack.us-west-2.amazonaws.com/flex022/uploads/dynamobim/original/2X/9/9d12fb9c6f78be6e2a3018f5762881b5022aa892.jpg) ---
**Author:** ![Kyle\_Killian](https://avatars.discourse-cdn.com/v4/letter/k/54ee81/32.png) [@Kyle\_Killian](https://forum.dynamobim.com/u/Kyle_Killian)\ **Post date:** [January 21, 2016, 5:48pm UTC](https://forum.dynamobim.com/t/solar-analysis-node-issue/1064/7 "2016-01-21T17:48:39Z")
I was wondering if anyone has developed this analysis further with new nodes in Dynamo. Im having difficulty building around new solar analysis node, for example, how does one input the sun settings? Any suggestions or further development with new nodes and lack of Vasari as a tool for radiation data. Thanks   ---
**Author:** ![Vikram\_Subbaiah](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/vikram_subbaiah/32/50797_2.png) [@Vikram\_Subbaiah](https://forum.dynamobim.com/u/Vikram_Subbaiah)\ **Post date:** [January 21, 2016, 7:48pm UTC](https://forum.dynamobim.com/t/solar-analysis-node-issue/1064/8 "2016-01-21T19:48:02Z")
No idea. However, the only package currently available is supposed to have timed out by now. ☹ ![20160122-1b](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/2X/6/61884927decce52feab661c6741af82f4b51998c.png) ---
**Author:** ![Martin\_Joe](https://avatars.discourse-cdn.com/v4/letter/m/8baadc/32.png) [@Martin\_Joe](https://forum.dynamobim.com/u/Martin_Joe)\ **Post date:** [February 26, 2016, 6:42am UTC](https://forum.dynamobim.com/t/solar-analysis-node-issue/1064/9 "2016-02-26T06:42:04Z")
Hi! I am trying out the solar analysis node but get the error: “Warning: SolarAnalysis.Analyze operation failed. Could not load type ‘Dynamo.DefaultRenderPackageFactory’ from assembly ‘DynamoCore, Version=0.9.1.4062, Culture=neutral, PublicKeyToken=null’.” What am I doing wrong? ![Dynamo error](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/2X/d/d5087edb7d4a370ebf71b37fb0e68d6431327426.png) ---
**Author:** ![Vikram\_Subbaiah](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/vikram_subbaiah/32/50797_2.png) [@Vikram\_Subbaiah](https://forum.dynamobim.com/u/Vikram_Subbaiah)\ **Post date:** [February 26, 2016, 7:29am UTC](https://forum.dynamobim.com/t/solar-analysis-node-issue/1064/10 "2016-02-26T07:29:18Z")
Might have something to do with the package timing out on Jan 1, 2016 ---
**Author:** ![Negar.s](https://avatars.discourse-cdn.com/v4/letter/n/4af34b/32.png) [@Negar.s](https://forum.dynamobim.com/u/Negar.s)\ **Post date:** [June 24, 2017, 9:49pm UTC](https://forum.dynamobim.com/t/solar-analysis-node-issue/1064/11 "2017-06-24T21:49:04Z")
Hello everyone, I am facing a problem in using solar analyst node in Dynamo. When I am applying the node on some surfaces (not all surfaces), the number of cumulative radiation points do not match the number of calculation points. For instance, as you can see in the screenshot, while there are 800 radiation points, there are only 420 calculation points. I was wondering if anyone faced this issue or has a solution for it. ![](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/d/4/d465ebe9dd3bb735e7dcfa7f8b554a45e7966e4c.png) ---
**Author:** ![stevanpfc2](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/stevanpfc2/32/80403_2.png) [@stevanpfc2](https://forum.dynamobim.com/u/stevanpfc2)\ **Post date:** [February 6, 2020, 6:31pm UTC](https://forum.dynamobim.com/t/solar-analysis-node-issue/1064/12 "2020-02-06T18:31:15Z")
@Martin_Joe I had the same problem, try using Weather.ByLatitudeLongitude, it should work even with Revit 2020 and Dynamo 2.1.0. Somehow SolarAnalysis.Analyze does not recognize weather data from Revit site location. ![1](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/9/6/968ea35a6a8a7e4686bdf8b4fa2572f109a27629.png) ---
**Author:** ![Andrew\_Hannell](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/andrew_hannell/32/103315_2.png) [@Andrew\_Hannell](https://forum.dynamobim.com/u/Andrew_Hannell)\ **Post date:** [February 6, 2020, 10:28pm UTC](https://forum.dynamobim.com/t/solar-analysis-node-issue/1064/13 "2020-02-06T22:28:55Z")
Not the answer to your question- but in my experience, I’ve tried with a number of Autodesk environmental analysis tools, but given up. They just seem to be a half-hearted attempt & I’ve never been able to get any decent results- but happy for someone to set me straight. Ladybug/Honeybee in Grasshopper are pretty well know. Less well known is VI Suite, which works within Blender. Whilst it is yet another application to come to grips with- I’ve found it fairly easy and the node editor in Blender has some similarities with Dynamo/Grasshopper. > **[Features](http://arts.brighton.ac.uk/projects/vi-suite/features)** > > VI-Suite features