Marine Tidal Current Electric Power Generation Technology: State of the Art and Current Status

TLDR

Marine tidal currents offer a vast, predictable, and high‑load‑factor resource for sustainable electricity generation, prompting international climate initiatives and the launch of multiple demonstration projects. This paper reviews the fundamental concepts and major global projects of marine tidal power. The review examines generator‑topology challenges in tidal turbines and identifies future issues by drawing parallels with wind‑turbine and ship‑propeller technologies. The paper identifies future challenges and indexes emerging technologies by referencing work on wind turbines and ship propellers.

Abstract

The potential of electric power generation from marine tidal currents is enormous. Tidal currents are being recognized as a resource to be exploited for the sustainable generation of electrical power. The high load factors resulting from the fluid properties and the predictable resource characteristics make marine currents particularly attractive for power generation and advantageous when compared to other renewable energies. Moreover, international treaties related to climate control have triggered resurgence in development of renewable ocean energy technology. Therefore, several demonstration projects in tidal power are scheduled to capture the tidal generated coastal currents. Regarding this emerging and promising area of research, this paper reviews marine tidal power fundamental concepts and main projects around the world. It also report issues regarding electrical generator topologies associated to tidal turbines. Moreover, attempts are made to highlight future issues so as to index some emerging technologies mainly according to relevant works that have been carried out on wind turbines and on ship propellers.