A free desktop application for techno-economic analysis of energy technologies.
Publisher’s description
What is System Advisor Model?
System Advisor Model is an open-source program for Windows from National Laboratory of the Rockies. It is written in C++.
Installation and requirements
Official installers exist for 32-bit as EXE (Inno Setup). The main installer is 81.7 MB. The installer supports unattended (silent) installation.
Updates and version history
The current version is 2026.7.3, released on September 21, 2026. 2 versions are listed since April 21, 2026, each with links to its own installer files.
Popularity and file types
The source code on GitHub (NatLabRockies/SAM) has 493 stars.
Project description on GitHub: “System Advisor Model (SAM)”
Pros / Cons
Pros
- Open source: the code can be inspected and built by anyone
- Documented silent install
- Updated in the last two months
Cons
- No native ARM64 build
- 32-bit only
In short: System Advisor Model is an open-source Windows tool for 32-bit PCs. Administrators can deploy it unattended.
Is System Advisor Model safe to download?
- The file is served by sam.nlr.gov, the publisher’s own domain
- The download link uses HTTPS
- A SHA256 hash is published, so you can verify the file:
A535CF0A1B42AC9160F20056DA0E1B4BB6CEB36DB997D8FEF003AA084436E27F· Open the VirusTotal report for this hash - The link answered when we last checked it (October 22, 2026)
- The source code is public
- ExeAtlas does not host, wrap or modify installers
Related guide: How to check a file’s SHA256 hash on Windows
Recent versions
All 2 versions ›| Version | Date | Size | Files |
|---|---|---|---|
| 2026.7.3Latest | September 21, 2026 | 81.7 MB | 32-bit EXE (Inno Setup) |
| 2025.4.16 | April 21, 2026 | — | 32-bit EXE (Inno Setup) |
Install from the command line
Silent install ›winget install --id NatLabRockies.SAM -efile.html /VERYSILENT /SUPPRESSMSGBOXES /NORESTART /SP-Related guide: How to use winget: install and update apps
Information
- Publisher
- National Laboratory of the Rockies
- Licence
- BSD-3-Clause
- Price
- Free
- Source code
- github.com/NatLabRockies/SAM
- Written in
- C++
- Requires
- Windows 11 / 10
- Architecture
- 32-bit
- Installer
- EXE (Inno Setup)
- Version
- 2026.7.3
- Released
- September 21, 2026
- Added to the catalogue
- July 3, 2026
- Versions listed
- 2
- GitHub stars
- 493
- GitHub forks
- 220
- Website
- sam.nlr.gov
- winget ID
- NatLabRockies.SAM
Ratings and reviews
No reviews yet. Be the first to rate it.
Frequently asked questions
Is System Advisor Model free?
Yes. System Advisor Model is open-source software under the BSD-3-Clause licence.
Is System Advisor Model safe to download?
The download comes from sam.nlr.gov, which belongs to the publisher; ExeAtlas does not host or change the file. Compare its SHA256 hash with the one shown here, or open the VirusTotal report for that hash.
How do I install System Advisor Model with winget?
Open PowerShell or Windows Terminal and run the winget command shown on this page. winget downloads the official installer and checks its SHA256 hash before running it.
Can System Advisor Model be installed silently?
Yes. The silent install page lists the exact command for each installer.
Does System Advisor Model run on ARM (Windows on Arm)?
There is no ARM64 build; Windows 11 on Arm can run the 32-bit version through emulation.
Where can I download an older version of System Advisor Model?
The versions page lists all 2 versions with links to their official installer files, back to April 21, 2026.