Renewable energy: tidal energy (Week 10, Lecture 3)
Continuing our discussion of renewable energy sources, in this lecture, we’ll talk about tidal energy and other sources of ocean energy, such as wave energy and thermal energy. Ocean energy is a form a renewable energy that isn’t much used in the United States, but the technology exists and it is used to a limited extent in other parts of the world. We’ll describe how tidal barrages and tidal turbines work, where they can be located, and how their environmental impacts differ.