The current version of SAM is SAM 2020.11.29 Revision 1, SSC 252. Use the Download buttons below to download the current version for Windows, Mac, or Linux.
If you have an older version of SAM on your computer, when you install the new version, it will install side-by-side with older verions(s). Different versions of SAM are independent of each other, so you can install and run different versions simultaneously for comparisons. You can remove (uninstall) older versions of SAM when you are finished using them.
If you need to download an older version of SAM, use the list list at left to find the version you need.
NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, operated by the Alliance for Sustainable Energy, LLC.