How start-ups harvest electricity from the sea

Visualization of a wave power plant

The movement drives generators, which in turn produce green electricity.

(Photo: Corepower)

Munich Patrik Möller, CEO and co-founder of the Swedish start-up Corpower Ocean, wants to usher in a “new era” in order to “supply the planet 24/7 with a previously untapped clean energy source”. On a blue-lit stage in Stockholm, the 46-year-old presents the new wave power plant “C4”, which resembles a huge blue-yellow buoy.

The principle: When there are waves, the buoy anchored to the seabed dances up and down. This movement drives two generators inside, which produce electricity. The electricity is brought to shore via submarine cables.

The special thing about the 300-kilowatt power plant, which corresponds to about one-thirtieth of a modern offshore wind turbine at peak load: The 75-strong Corpower team could thus overcome a decisive hurdle for the commercial breakthrough of wave power.

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