Argonne National Laboratory

Energy Systems Modeling
Argonne develops models and software packages that can assist fleet managers and technology developers in assessing the potential impacts of implementing new technologies.

Proposed transformations to the nation's energy system will introduce astonishing new technologies into the market, cause widespread changes in our energy consumption patterns, and even physical changes to the power grid. The result? Our energy system will be altered in complex and interdependent ways that are far too difficult to envision.

Argonne uses comprehensive systems analysis tools and its advanced computing capabilities allow the complexity of energy systems to be investigated as a whole system instead of component parts.  In this manner, an in-depth understanding of the technologies' cumulative impacts on our future environment, economy and security can be gained.


Rapidly evaluate new powertrain and propulsion technologies for improving fuel economy through virtual design and analysis in a math-based simulation environment.


The General Computational toolkit (GCtool) is a versatile simulation software package for designing, analyzing, and comparing different power-plant configurations. This flexible software uses a modular approach to integrate many of the detailed thermodynamic and component models developed during decades of fuel cell and power system research at national laboratories and in private industry.

Greenhouse Gases, Regulated Emissions, and Energy Use in Transportation Model (GREET)

Evaluate engine and fuel combinations on a consistent fuel-cycle basis; measure the petroleum displacement and greenhouse gas emissions of medium and heavy-duty vehicles and off-road equipment.


High-performance, open-source agent-based modeling framework used to estimate impacts on mobility at the regional level. Linked with Autonomie, POLARIS is used to perform regional energy use analysis for multiple intelligent transportation systems and Connected and Automated Vehicles (CAVs) technologies.


Estimate the potential energy use, oil use, and carbon emission impacts of advanced light and heavy-duty vehicle technologies and alternative fuels through 2050.