FuelCell Energy's solid oxide electrolysis cell (SOEC) system is undergoing testing at the U.S. Department of Energy’s Idaho National Laboratory (INL) to validate 100% electrical efficiency with nuclear integration. This project, partially funded by the U.S. Department of Energy, focuses on exploring how hydrogen production operations can enhance the profitability of nuclear plants by enabling them to switch between electricity production and hydrogen generation. The testing also encompasses the potential of advanced small modular reactor designs paired with FuelCell Energy's electrolyzers. The system is designed to produce 150 kilograms of hydrogen per day from 250 kilowatts of nuclear energy, demonstrating high efficiency and cost-effectiveness. This electrolyzer, unlike previous systems studied at INL, is a fully integrated solid oxide electrolyzer system. FuelCell Energy's CEO highlighted the significance of combining the company's electrolyzer with nuclear plants to achieve a comprehensive energy strategy. This integration ensures optimal utilization of power resources and paves the way for smart energy utilization. The article emphasizes how hydrogen produced through electrolysis can be stored long term and transported, facilitating the availability of energy from renewable and nuclear sources on demand.