FuelCell Energy's solid oxide electrolysis cell (SOEC) system is undergoing testing and validation at the US Department of Energy's Idaho National Laboratory (INL) with the goal of demonstrating 100% efficiency and reducing hydrogen costs by up to 30% through the use of nuclear heat. The system, expected to be the largest electrolyser studied at INL, aims to produce 150kg of hydrogen per day from 250kW of nuclear energy-generated electricity. The collaboration will explore how nuclear-hydrogen integration can be achieved, allowing nuclear plants to switch between power generation and hydrogen production. By pairing FuelCell Energy's electrolyser with nuclear plants, the project emphasizes an 'all-of-the-above' energy strategy to meet the needs of the electric infrastructure efficiently. The US Treasury's recent relaxation of rules surrounding the 45V hydrogen tax credit paves the way for nuclear power plants to integrate electrolysis systems like FuelCell Energy's SOEC, enabling clean hydrogen production while maintaining stable grid operations.