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SSC (SAM Simulation Core)

BuildCoverage Status

The SSC Open Source Project repository contains the source code for the technology and financial models contained within the National Laboratory of the Rockies' System Advisor Model™ (SAM™). For more details about SAM's capabilities, see the SAM website at https://sam.nlr.gov/.

You could think of SSC as the home for the algorithms behind the SAM desktop program. Most people run the code through the desktop user interface, but SSC can also be run directly using the SAM Sofware Develoment Kit.

SSC requires building six other open-source projects:

Please see the main SAM project wiki for complete build instructions and software dependencies.

SSC directly includes source code from three other open-source projects, and builds them as part of its build process. These projects and their respective licenses are:

To explore the code and understand the algorithms used in SSC, start by looking in the "SSC" project at the compute modules (files starting with cmod_) to find the compute module for the technology or financial model of interest.

Contributing

Please see the contribution guidelines in the main SAM project readme.

License

SSC is licensed with BSD-3-Clause terms, found here.

Citing this package

System Advisor Model Version 2026.7.3 (2026). SSC source code. National Laboratory of the Rockies. Golden, CO. Accessed July 8, 2026. https://github.com/NatLabRockies/ssc

About

SAM Simulation Core (SSC) contains the underlying performance and financial models for SAM

Resources

Readme
BSD-3-Clause license

Contributing

Contributing
Activity
Custom properties

Stars

93 stars

Watchers

17 watching

Forks

120 forks
Report repository

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, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

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SSC (SAM Simulation Core)
BuildCoverage Status
The SSC Open Source Project repository contains the source code for the technology and financial models contained within the National Laboratory of the Rockies' System Advisor Model™ (SAM™). For more details about SAM's capabilities, see the SAM website at https://sam.nlr.gov/.
You could think of SSC as the home for the algorithms behind the SAM desktop program. Most people run the code through the desktop user interface, but SSC can also be run directly using the SAM Sofware Develoment Kit.
SSC requires building six other open-source projects:
Please see the main SAM project wiki for complete build instructions and software dependencies.
SSC directly includes source code from three other open-source projects, and builds them as part of its build process. These projects and their respective licenses are:
To explore the code and understand the algorithms used in SSC, start by looking in the "SSC" project at the compute modules (files starting with cmod_) to find the compute module for the technology or financial model of interest.
Contributing
Please see the contribution guidelines in the main SAM project readme.
License
SSC is licensed with BSD-3-Clause terms, found here.
Citing this package
System Advisor Model Version 2026.7.3 (2026). SSC source code. National Laboratory of the Rockies. Golden, CO. Accessed July 8, 2026. https://github.com/NatLabRockies/ssc
About
SAM Simulation Core (SSC) contains the underlying performance and financial models for SAM
Resources
Readme
BSD-3-Clause license
Contributing
Contributing
Activity
Custom properties
Stars
93 stars
Watchers
17 watching
Forks
120 forks
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix");
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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SSC (SAM Simulation Core)
BuildCoverage Status
The SSC Open Source Project repository contains the source code for the technology and financial models contained within the National Laboratory of the Rockies' System Advisor Model™ (SAM™). For more details about SAM's capabilities, see the SAM website at https://sam.nlr.gov/.
You could think of SSC as the home for the algorithms behind the SAM desktop program. Most people run the code through the desktop user interface, but SSC can also be run directly using the SAM Sofware Develoment Kit.
SSC requires building six other open-source projects:
Please see the main SAM project wiki for complete build instructions and software dependencies.
SSC directly includes source code from three other open-source projects, and builds them as part of its build process. These projects and their respective licenses are:
To explore the code and understand the algorithms used in SSC, start by looking in the "SSC" project at the compute modules (files starting with cmod_) to find the compute module for the technology or financial model of interest.
Contributing
Please see the contribution guidelines in the main SAM project readme.
License
SSC is licensed with BSD-3-Clause terms, found here.
Citing this package
System Advisor Model Version 2026.7.3 (2026). SSC source code. National Laboratory of the Rockies. Golden, CO. Accessed July 8, 2026. https://github.com/NatLabRockies/ssc
About
SAM Simulation Core (SSC) contains the underlying performance and financial models for SAM
Resources
Readme
BSD-3-Clause license
Contributing
Contributing
Activity
Custom properties
Stars
93 stars
Watchers
17 watching
Forks
120 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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SSC (SAM Simulation Core)
BuildCoverage Status
The SSC Open Source Project repository contains the source code for the technology and financial models contained within the National Laboratory of the Rockies' System Advisor Model™ (SAM™). For more details about SAM's capabilities, see the SAM website at https://sam.nlr.gov/.
You could think of SSC as the home for the algorithms behind the SAM desktop program. Most people run the code through the desktop user interface, but SSC can also be run directly using the SAM Sofware Develoment Kit.
SSC requires building six other open-source projects:
Please see the main SAM project wiki for complete build instructions and software dependencies.
SSC directly includes source code from three other open-source projects, and builds them as part of its build process. These projects and their respective licenses are:
To explore the code and understand the algorithms used in SSC, start by looking in the "SSC" project at the compute modules (files starting with cmod_) to find the compute module for the technology or financial model of interest.
Contributing
Please see the contribution guidelines in the main SAM project readme.
License
SSC is licensed with BSD-3-Clause terms, found here.
Citing this package
System Advisor Model Version 2026.7.3 (2026). SSC source code. National Laboratory of the Rockies. Golden, CO. Accessed July 8, 2026. https://github.com/NatLabRockies/ssc
About
SAM Simulation Core (SSC) contains the underlying performance and financial models for SAM
Resources
Readme
BSD-3-Clause license
Contributing
Contributing
Activity
Custom properties
Stars
93 stars
Watchers
17 watching
Forks
120 forks
Report repository
Releases
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Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

Skip to content
BranchesTags
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SSC (SAM Simulation Core)
BuildCoverage Status
The SSC Open Source Project repository contains the source code for the technology and financial models contained within the National Laboratory of the Rockies' System Advisor Model™ (SAM™). For more details about SAM's capabilities, see the SAM website at https://sam.nlr.gov/.
You could think of SSC as the home for the algorithms behind the SAM desktop program. Most people run the code through the desktop user interface, but SSC can also be run directly using the SAM Sofware Develoment Kit.
SSC requires building six other open-source projects:
Please see the main SAM project wiki for complete build instructions and software dependencies.
SSC directly includes source code from three other open-source projects, and builds them as part of its build process. These projects and their respective licenses are:
To explore the code and understand the algorithms used in SSC, start by looking in the "SSC" project at the compute modules (files starting with cmod_) to find the compute module for the technology or financial model of interest.
Contributing
Please see the contribution guidelines in the main SAM project readme.
License
SSC is licensed with BSD-3-Clause terms, found here.
Citing this package
System Advisor Model Version 2026.7.3 (2026). SSC source code. National Laboratory of the Rockies. Golden, CO. Accessed July 8, 2026. https://github.com/NatLabRockies/ssc
About
SAM Simulation Core (SSC) contains the underlying performance and financial models for SAM
Resources
Readme
BSD-3-Clause license
Contributing
Contributing
Activity
Custom properties
Stars
93 stars
Watchers
17 watching
Forks
120 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
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SSC (SAM Simulation Core)
BuildCoverage Status
The SSC Open Source Project repository contains the source code for the technology and financial models contained within the National Laboratory of the Rockies' System Advisor Model™ (SAM™). For more details about SAM's capabilities, see the SAM website at https://sam.nlr.gov/.
You could think of SSC as the home for the algorithms behind the SAM desktop program. Most people run the code through the desktop user interface, but SSC can also be run directly using the SAM Sofware Develoment Kit.
SSC requires building six other open-source projects:
Please see the main SAM project wiki for complete build instructions and software dependencies.
SSC directly includes source code from three other open-source projects, and builds them as part of its build process. These projects and their respective licenses are:
To explore the code and understand the algorithms used in SSC, start by looking in the "SSC" project at the compute modules (files starting with cmod_) to find the compute module for the technology or financial model of interest.
Contributing
Please see the contribution guidelines in the main SAM project readme.
License
SSC is licensed with BSD-3-Clause terms, found here.
Citing this package
System Advisor Model Version 2026.7.3 (2026). SSC source code. National Laboratory of the Rockies. Golden, CO. Accessed July 8, 2026. https://github.com/NatLabRockies/ssc
About
SAM Simulation Core (SSC) contains the underlying performance and financial models for SAM
Resources
Readme
BSD-3-Clause license
Contributing
Contributing
Activity
Custom properties
Stars
93 stars
Watchers
17 watching
Forks
120 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
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SSC (SAM Simulation Core)
BuildCoverage Status
The SSC Open Source Project repository contains the source code for the technology and financial models contained within the National Laboratory of the Rockies' System Advisor Model™ (SAM™). For more details about SAM's capabilities, see the SAM website at https://sam.nlr.gov/.
You could think of SSC as the home for the algorithms behind the SAM desktop program. Most people run the code through the desktop user interface, but SSC can also be run directly using the SAM Sofware Develoment Kit.
SSC requires building six other open-source projects:
Please see the main SAM project wiki for complete build instructions and software dependencies.
SSC directly includes source code from three other open-source projects, and builds them as part of its build process. These projects and their respective licenses are:
To explore the code and understand the algorithms used in SSC, start by looking in the "SSC" project at the compute modules (files starting with cmod_) to find the compute module for the technology or financial model of interest.
Contributing
Please see the contribution guidelines in the main SAM project readme.
License
SSC is licensed with BSD-3-Clause terms, found here.
Citing this package
System Advisor Model Version 2026.7.3 (2026). SSC source code. National Laboratory of the Rockies. Golden, CO. Accessed July 8, 2026. https://github.com/NatLabRockies/ssc
About
SAM Simulation Core (SSC) contains the underlying performance and financial models for SAM
Resources
Readme
BSD-3-Clause license
Contributing
Contributing
Activity
Custom properties
Stars
93 stars
Watchers
17 watching
Forks
120 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

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SSC (SAM Simulation Core)
BuildCoverage Status
The SSC Open Source Project repository contains the source code for the technology and financial models contained within the National Laboratory of the Rockies' System Advisor Model™ (SAM™). For more details about SAM's capabilities, see the SAM website at https://sam.nlr.gov/.
You could think of SSC as the home for the algorithms behind the SAM desktop program. Most people run the code through the desktop user interface, but SSC can also be run directly using the SAM Sofware Develoment Kit.
SSC requires building six other open-source projects:
Please see the main SAM project wiki for complete build instructions and software dependencies.
SSC directly includes source code from three other open-source projects, and builds them as part of its build process. These projects and their respective licenses are:
To explore the code and understand the algorithms used in SSC, start by looking in the "SSC" project at the compute modules (files starting with cmod_) to find the compute module for the technology or financial model of interest.
Contributing
Please see the contribution guidelines in the main SAM project readme.
License
SSC is licensed with BSD-3-Clause terms, found here.
Citing this package
System Advisor Model Version 2026.7.3 (2026). SSC source code. National Laboratory of the Rockies. Golden, CO. Accessed July 8, 2026. https://github.com/NatLabRockies/ssc
About
SAM Simulation Core (SSC) contains the underlying performance and financial models for SAM
Resources
Readme
BSD-3-Clause license
Contributing
Contributing
Activity
Custom properties
Stars
93 stars
Watchers
17 watching
Forks
120 forks
Report repository
Releases
Packages
Used by
Contributors
Languages