GTA’s mission is to expand the current business model of offshore wind energy by adding renewable hydrogen production as a value-added product. We design, build and test scalable prototype electrolyzers for production of renewable hydrogen wherein the electrolyzers are anchored at the sea floor beneath gigawatt fields of dedicated wind turbines that provide the electric power for the electrolyzers. The cost of power electronics, inter-array cables and high-voltage export cables connecting offshore wind farms to the electricity grid is approaching 30% of the system CAPEX. Also, insurance payments for the cables account for 30% of the system OPEX. 90% of the lawsuits and 70% of the actual cash settlements in the offshore wind electricity industry are associated with the cables. Overall electric energy cable losses between the offshore wind farm and utility consumers is in the range 8 – 15%. GTA proposes an innovative engineering solution to the techno-economic obstacles of offshore wind multi-gigawatt electrolytic hydrogen production by building on and extending the validation results obtained under the Cooperative Research and Development Agreement (CRADA) between GTA and the National Renewable Energy Laboratory. The engineering solution introduces a second category of wind turbines that are not connected to the grid. The turbines are connected to GTA electrolyzers that are anchored at the sea floor, wherein native electricity generated by the turbines is immediately conditioned for the electrolyzers and used to generate and export or store renewable hydrogen.