Project Final Report-17121-1902-The goal of this project is to evaluate options and develop a conceptual design for a seafloor power system to be used in offshore oil and gas operations. The system will be a hybrid system, in the sense that it will combine energy conversion and energy storage capabilities. The project will result in a comprehensive analysis of the options available for developing such a system, culminating in a conceptual design for the best option, based on its technical merits and economic feasibility.