
About Us
The GEMS initiative, funded by the U.S. Department of Energy (DOE), accelerates advanced power grid modeling and simulation through innovative tools, collaborative working groups, and workforce development, ensuring America’s electric grid remains affordable, reliable, secure, and ready for future challenges.
The Grid EMT Simulation (GEMS) initiative is advancing the next generation of power grid modeling tools to help ensure the nation’s electric grid remains reliable, secure, and ready for the future.
Led by the U.S. DOE’s Office of Electricity’s Advanced Grid Modeling program, in partnership with the North American Electric Reliability Corporation (NERC), GEMS brings together national laboratories, utilities, system operators, industry, academia, technology providers, and policymakers to improve the way the grid is planned, studied, and operated.
Together, the GEMS working groups drive innovation in electromagnetic transient simulation by developing advanced models, solver technologies, features, and training resources, enabling utilities and engineers to improve grid reliability, efficiency, and resilience. Their collaborative efforts support standardized practices, large-scale studies, and workforce development to meet the evolving needs of America’s electric grid.



GEMS EMT Simulator
Working groups within GEMS drive progress in EMT simulation tools, making them faster, easier to use, and capable of modeling even larger regions.
EMT simulations let engineers analyze ultra-fast electrical changes in detail, helping them build a safer, more reliable grid. GEMS EMT simulator, RE-INTEGRATE, is a software platform that tests real-world scenarios. By simulating electrical disruptions like power surges, engineers identify vulnerabilities, minimize outage risks, and protect critical equipment before problems occur.
These advancements strengthen grid technology and guide standards bodies, such as NERC, in integrating new high-demand power loads. The initiative equips utilities and system operators with improved tools, actionable insights, and practical training, closing essential skill gaps in the energy sector.

Supporting America’s Grid
Through industry collaboration and hands-on training, these improvements enable grid operators and engineers to efficiently integrate modern power loads and keep America’s grid ahead of emerging challenges.
This initiative represents a crucial investment in the affordability, reliability, and security of the nation’s electric grid. By uniting researchers, industry leaders, and educators, it ensures the grid continues to reliably power lives, the economy, and the future.

