What is NEMS?
The National Energy Modeling System (NEMS) is one of the most comprehensive energy system models used to evaluate long-term energy policies and market dynamics in the United States.
Developed and maintained by the U.S. Energy Information Administration, NEMS is used to produce the Annual Energy Outlook (AEO) and inform major policy and infrastructure decisions.
Why NEMS Matters
NEMS integrates multiple sectors of the energy system, including:
- electricity generation
- fuels markets
- technology adoption
- macroeconomic impacts
This integrated structure allows researchers to explore complex questions about energy transitions, economic outcomes, and policy impacts.
The Access Gap
Despite its importance, NEMS remains difficult to use outside specialized contexts. Barriers include:
- technical complexity
- limited documentation for new users
- steep learning curves for researchers
NEMS Connect helps by:
- supporting research collaborations
- providing training and interpretation
- translating results for broader audiences
- helping institutions integrate NEMS into research programs