The project goal is to design an electrical power transmission and distribution (T&D) system that will enable subsea oil and gas production for a deepwater field development scenario; it includes designing, building, and qualifying critical components in a system demonstration to advance their Technology Readiness Levels (TRLs). In Phase I, the Modular Stacked Direct Current (MSDC) system will be assessed against existing subsea T&D solutions, and critical building block components to enable the technology will be identified. In Phase II, four components will be designed, developed, and qualification tested using a demonstration system.