FuelCell Energy is testing its solid oxide electrolysis cell (SOEC) system at Idaho National Laboratory, showcasing the potential for clean hydrogen production in nuclear power plants. The project, supported by a Department of Energy award in 2020, aims to explore the role of hydrogen production in enhancing the profitability of nuclear facilities. By producing 150 kilograms of hydrogen daily using 250 kilowatts of nuclear-generated electricity, the system achieves 100% efficiency when utilizing waste heat from nuclear plants, potentially reducing clean hydrogen production costs by up to 30%. The modular design of the electrolyzer system, transported on two flatbed trucks, facilitates scalability and easy deployment. The testing at the lab will assess real-world applications such as thermal energy utilization from nuclear reactors, grid dynamics, and reactor control simulation. Additionally, the system will be presented to global energy industry visitors at the lab, supporting ongoing research in e-chemical synthesis, turbine co-firing, and vehicle refueling. This innovative testing initiative highlights the potential for increased efficiency and cost savings in clean hydrogen production, offering promising advancements in sustainable energy technology.