High-fidelity Simulators

The most experienced simulation company in the world.

Since building the first commercial full-scope nuclear reactor simulator in 1971, we have delivered more full-scope simulators than all of our competitors combined. Our simulation applications go beyond training to provide deeper understanding of plant design issues, procedural deficiencies and reliability improvements. With a large staff dedicated to power plant simulation, we bring the size, expertise, management skills, and experience to assure that every project is done right, on time and within budget.

Why GSE

  • Pioneering Expertise

    Leading in high-fidelity simulation training since 1971

  • High-Fidelity Simulation

    Versatile applications across nuclear, fossil, oil & gas, refining, chemicals, and renewables

  • Risk Mitigation

    Advanced simulations for testing, control strategies and procedures

  • Engineering-Grade Modeling

    High-fidelity and full-scope control room replicas and emulations tailored to meet rigorous engineering standards

  • Digital Twin Technology

    Robust digital twin modeling to simulate plant physics accurately, enhancing your understanding and management of plant operations

  • Extensive Portfolio

    Our broad experience includes 173 nuclear, 208 fossil, and 114 process simulators, showcasing our depth and versatility

  • Tech Integration

    Support emerging technologies like WEC AP1000 and NuScale SMR

  • DOE Naval Reactors

    Trusted by the US DOE for nuclear simulation excellence

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