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Data Viewer beta
Building Characteristics beta
About ComStock
Highly granular modeling of the U.S. commercial building stock
Commercial stock characteristics database
The ComStock and ResStock analysis tools are helping states, municipalities, utilities, and manufacturers identify which building stock improvements save the most energy and money. ComStock is a U.S. Department of Energy model of the commercial building stock, developed and maintained by NREL. Learn more.
Explore existing analysis results on ComStock's interactive website. State-level results can be filtered to identify the savings potential in various segments of the commercial building stock, whether that is buildings of a certain vintage, specific heating fuel type, or in a specific state and climate zone.
Energy Conservation Measure Glossary
Review the measures currently supported in the current (V1) national scale ComStock release and the conditions determining applicability of the measure. Links are included to the source code for deep dives on the modeling assumptions and implementations.
FAQs, Known Bugs, and Planned Improvements
Learn the answers to frequently asked questions, find out about known bugs in the user interface or data set, and learn about improvements and bug fixes that are in the works or planned for the future.
Gain insights on the beta version of ComStock in the Electrification Futures Study Model Documentation .
Gain insights on the methodology and review the code and resource files used to generate the national scale analysis from the public ComStock GitHub repository
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. Contact Us