SAM Downloads

The current version of SAM is SAM 2021.12.02, SSC 267. Use the Download buttons below to download the current version for Windows, Mac, or Linux.

When you first run SAM, you will need to register SAM: Type your email address and, if you are new to SAM, click Register to receive a free software key, or paste your existing key and click Confirm to confirm your existing key. (If you lost your key, either copy it from the Registration page of an older version of SAM, or click Confirm without typing a key to have it automatically emailed to you.)

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.

SAM's data viewer displays hourly and subhourly time series data in graphs and tables and is available for download as a standalone desktop application for Windows.

SAM 2021.12.02 for Windows


Download (exe, 71.45 MB)


SAM 2021.12.02 requires Windows 10/8 (64-bit). We have not yet tested it with Windows 11. It should work, but please This email address is being protected from spambots. You need JavaScript enabled to view it. if you have any trouble.

Windows Installation Instructions

  • Double click the .exe installation file and follow the instructions in the installation wizard. By default SAM will install in the c:/SAM/2021.12.2 folder.

Installation troubleshooting:

NREL does not have a Microsoft code signing certificate for SAM, so when you install the software on a Windows computer, you will likely see messages warning you about the installation:

  • If Windows displays Do you want to allow this app from an unkown publisher to make changes to your device, click Yes to install SAM.
  • If Windows displays Windows protected your PC, click More info and then Run anyway to install SAM.

If, when you start SAM after installing it, you see a VCRuntime140_1.dll missing message, run the VC_redist.x64.exe program that comes with your SAM installation. You can find it in the following folder: C:\SAM\2021.12.02\runtime\bin.

SAM 2021.12.02 for Mac


Download (dmg, 83.90 MB)


SAM 2021.12.02 requires MacOS 10.15 or later.

Mac Installation Instructions

  • Double-click the disk image (.dmg file) to open it, and drag the SAM icon to your applications folder. This adds the SAM.app application to your Applications folder.

NREL does not have an Apple code signing certificate for SAM. If you see a message about verifying SAM that prevents you from starting SAM:

  1. Open a Finder window, go to the Applications folder, and open the SAM disk image.
  2. Control-click the SAM app icon.
  3. Click Open, and follow the prompts to open the application from an unknown developer and save SAM as an exception to your security settings.

For some older versions of MacOS (OS X), a security feature called Gatekeeper may prevent you from starting SAM. For more on bypassing Gatekeeper, see this CNET article.

If SAM does not display correctly in macOS Dark Mode, close SAM, switch macOS to Light Mode, and then restart SAM.

SAM 2021.12.02 for Linux


Download (run, 83.32 MB)


In Linux, the .run file is a self-extracting archive. By default it installs in /home/SAM/ or /opt/SAM/.

Linux Installation Instructions

  1. After the download finishes, open a terminal window and go to the Download folder:
    cd <path/to/Downloads>
  2. Open a terminal window and add execute permissions to the file:
    chmod u+x ./sam-linux-2021-12-02.run
  3. Run the installer:
  4. When the installer finishes, to run SAM:
    cd <path/to/SAM/2020.11.29>