This three-minute video introduces two innovative approaches to harnessing energy from ocean waves from Eco Wave Power and AW Energy. Water covers about 70% of the planet, and much of it, driven by the Sun, is in constant motion. For at least 200 years, visionaries have dreamt of harnessing this “blue energy” and using it to power the world. But engineering challenges in these environments – especially at sea – can be vast. Another big hurdle is convincing investors to back these projects in the face of current uncertainty.

Find out more about the researchers and hi-tech business pioneers offering ways to harness blue energy – read this feature by science writer Stephen Ornes, originally published in the March 2020 issue of Physics World.