Regional Energy Deployment System
The Regional Energy Deployment System (ReEDS) is NLR's flagship capacity planning model for the power sector.
The model simulates the possible evolution of the bulk power system—generation and transmission—from present day through 2050 or later.
Learn more about the ReEDS model on GitHub, check out the user guide for suggestions on improving usage of the model, or watch a video training series. Each tutorial focuses on a different aspect of the model and includes a demonstration by a ReEDS developer. For additional questions about the model, please contact the ReEDS staff.

ReEDS Model Is Now Available
The ReEDS model is now open source.
Access on ReEDS GitHub.
Standard Scenarios and Examples
The ReEDS model informs a range of electricity sector research questions. These include energy policy, energy integration, technology innovation, and other forward-looking generation and transmission infrastructure issues.
For examples of recent topics and trends observed in the ReEDS model, see the 2024 Standard Scenarios Report: A U.S. Electricity Sector Outlook.
Also, explore the model results in the Scenario Viewer and Data Downloader.
For a more comprehensive view of questions informed by the model, see our publications.
Publications
Explore the full list of ReEDS publications on GitHub.
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Last Updated May 19, 2026