Assumptions to the Annual Energy Outlook 2026
This series of reports presents the major assumptions of the National Energy Modeling System (NEMS) the U.S. Energy Information Administration (EIA) used to generate the projections in the Annual Energy Outlook 2026 (AEO2026), including general features of the model structure, assumptions concerning energy markets, and the key input data and parameters that were critical to formulating the model results.
- Sections by Module
- Carbon Capture, Allocation, Transportation, and Sequestration Module (PDF)
- Coal Market Module (PDF)
- Commercial Demand Module (PDF)
- Electricity Market Module (PDF)
- Emissions Policy Module (PDF)
- Hydrocarbon Supply Module (PDF)
- Hydrogen Market Module (PDF)
- Industrial Demand Module (PDF)
- International Energy Module (PDF)
- Liquid Fuels Market Module (PDF)
- Macroeconomic Activity Module (PDF)
- Natural Gas Market Module (PDF)
- Renewable Fuels Module (PDF)
- Residential Demand Module (PDF)
- Transportation Demand Module (PDF)
- Summary of Legislation and Regulations included in the Annual Energy Outlook 2026 (PDF)
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About the Annual Energy Outlook
- Contact information and staff
- Download NEMS
- Retrospective Review
- NEMS: An Overview (2023) PDF
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Previous Editions of the AEO
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Documentation and Assumptions