Skip to main content

NEMO is designed to analyze critical issues in contemporary energy policy – ​​including grid integration of variable renewables, the role of energy storage, and robust planning responses to climate change. It is a comprehensive energy system optimization tool that can be run from the command line or with SEI’s Low Emissions Analysis Platform (LEAP) as the user interface. The combination of LEAP and NEMO puts powerful optimization capabilities at the fingertips of planners, energy analysts, and others who aren’t full-time modelers. NEMO is used for capacity expansion and energy development planning, energy strategies, energy-water-food nexus analyses, and deep decarbonization studies.

Key features of NEMO include:

  • Cost-effective optimization of energy supply and demand
  • Support for multiple regions and regional trade
  • Energy storage modeling
  • Simulations of nodal networks and modeling of power and pipeline flows
  • Modeling of emissions and emission constraints
  • Modeling renewable energy targets
  • Parallel processing
  • Support for multiple solvers, both open-source and commercial
  • Lots of performance tuning options
  • Data stored in an open source relational database, allowing easy access to inputs and results

NEMO source code and documentation are available on the NEMO website . The tool is freely available for use in command line mode. A separate license, which can be requested on the LEAP site , is required to run NEMO with LEAP. SEI provides free licenses to use NEMO with LEAP to qualified academic, government, and nonprofit organizations based in low- and middle-income countries, as well as to students worldwide. Modest license fees are charged to other users, including consulting firms and utilities.