Resilient, EMP-Hardened, Renewable Offshore Hydrogen, Oxygen, and Ammonia Production for Maritime Fueling, Cargo Loading, and Marine Aquaculture

E. Greenbaum
GTA, Inc., Georgia, United States

Poster stand number: T122

Keywords: hydrogen, oxygen, ammonia, decarbonization, mariculture

GTA is an R&D technology company focused on expanding the current business model of offshore wind and ocean energy by adding green hydrogen, ammonia, and oxygen production as value-added products. Our advance is a first-principles design and operation of a scalable seawater submersible electrolyzer for subsea operation in harsh ocean environments. Pressure-balanced electrolysis uses cold water and seafloor hydrostatic pressure for cooling and first-stage gas compression without a mechanical compressor. GTA subsea electrolyzers are compatible with all fixed and floating offshore wind and ocean energy conversion systems. The electrolyzer housing is polyethylene, a thermoplastic material with virtually perfect stability in seawater. GTA electrolyzers are mass produced using rapid methods of thermoplastic injection molding and thermoforming technology. A working GTA electrolyzer was validated at the U.S. National Renewable Energy Laboratory. GTA’s entry “Seafloor Hydrostatic Pressure-Assisted Green Hydrogen Production and Storage by Offshore Wind and Ocean Energy” was peer-reviewed by the U.S. National Academies of Sciences, Engineering, and Medicine and added to the Ocean Shot Directory. GTA subsea hydrogen production technology was presented at a Defense Energy Seminar, U. S. Naval Postgraduate School, Monterey, California. The GTA team includes the Gulf Offshore Research Institute and, Marine Research Center, University of Southern Mississippi.