Science View S2013E31 - Marine Power - The New Wave in Renewable Energy!

Japanese islands are surrounded by sea. Sea that harbors a vast source of potential energy wealth. It is like a dream come true for resource-poor Japan. There is wave power generated from wave motion, tidal power generated using spinning turbines and ocean thermal energy conversion using low temperature deep-sea water. We explore the latest technologies now that they are coming within sight of commercial viability, and the fierce competition in marine power R&D.