Solar help article involves obsolete steps.

[ct_studio]

the link in the note is for a post from 2017:

https://forums.autodesk.com/t5/lighting-solar-analysis-forum/solar-analysis-sar-documentation/td-p/7...

I wasn't able to get this plugin for 2020 to run on revit 2025.

[ct_studio · Accepted solution]

Found working download in my products and services > extensions.

[handjonathan]

Glad you got all sorted @ct_studio