NOVELTY - The electrolysis reactor system (1) includes thermal management subsystem (20) in fluidic contact with the working electrode of the electrolysis reactor subsystem (10). The thermal management subsystem removes heat from the working electrode. A control subsystem (30) has at least one sensors for monitoring the electrolysis reactor vessel of the electrolysis reactor subsystem and at least one controller that controls at least one of the electrolysis reactor subsystem and the thermal management subsystem.    USE - Electrolysis reactor system for production, safe storage and release of hydrogen.    ADVANTAGE - Electrolysis reactor system is provided with novel electrolysis system design that utilizes electrolysis of ionized vapor and gasses to efficiently produce and store hydrogen in the hydrogen host material and has the capability to reverse the electrolysis potential to provide safe, controlled hydrogen release. Thermal management system is incorporated to recover energy from the exothermic reaction of hydrogen being charged into nickel. Long-term storage of hydrogen is maintained in the working electrode by reducing the temperature to reduce diffusivity, pressure, physical diffusion barrier, and/or electrical overpotential. Controlled release of the hydrogen from the working electrode is achieved by heating the working electrode and by reducing and/or reversing the overpotential between the counter-electrode and the working electrode to drive out the hydrogen. Electrodes have designs that can also incorporate at least one diffusion barrier to prevent undesired hydrogen release from the active electrode materials. Enables to load and maintain high loading of hydrogen into suitable working electrode materials and/or composites, including control of flux of hydrogen into and/or out of the working electrode materials while operating within the pressure and temperature ranges that has been shown to support increased hydrogen diffusivity and permeability into and out of the working electrode materials. Applies additional stimuli that have been shown experimentally to be beneficial to loading the working electrode with hydrogen including static and dynamic magnetic fields and electric fields including sparks and plasmas, and ultrasonic stimulation to help initiate and control the hydrogen flux into and out of the working electrode materials. Enables to conduct, transfer, and transport the heat produced in the working electrode away from the working electrode and to control the heat transfer rate to maintain the working electrode within the temperature range for sustained hydrogen flux rates while preventing the working electrode from overheating which can result in sintering, rupturing, or melting of the materials, and the ability to recover energy from the heat produced. Utilizes wide variety of materials that are capable of loading and storing hydrogen, including but not limited to bulk lattice materials, deposits of lattice materials, and aggregates of materials including micro-and nano-particles in or on the working electrode. Utilizes composite working electrode designs such as hydrogen permeable membrane to contain hydride nano-particles materials, control mechanisms to control the nonlinear behavior of the system including but not limited to control of chaos techniques to maintain production, loading, storage, and release while controlling the temperatures within the reactor subsystem.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method of loading hydrogen into working electrode.    DESCRIPTION OF DRAWING(S) - The drawing shows the block diagram of the electrolysis reactor system.    Electrolysis reactor system (1)    Electrolysis reactor subsystem (10)    Thermal management subsystem (20)    Control subsystem (30)    Power source (40)