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Tidal current

nova innovation tidal energy turbine© Nova Innovation

A highly predictable clean energy source

 Tidal currents are caused by the gravitational forces of the sun and the moon, and accelerated near constrictions such as islands or inlets.

Since tidal energy production is not influenced by weather conditions but only by well-known cycles of the moon, sun and earth, it is predictable hundreds of years in advance.

© Colin Keldie - www.k4graphics.com

How does it work?

Tidal turbines harness the lateral flow of currents to produce clean, predictable renewable energy.

Tidal device operation is similar to that of a wind turbine, albeit operating in a different environment. Since water is 832 times denser than air, tidal devices capture more energy than their wind counterpart and can use smaller blades.

Tidal turbines can be fixed to the sea bed or floating nearer the surface with moorings attached to the seafloor.

© Atlantis Resources Plc

Ready for take-off

The tidal current sector is currently taking off. The first pre-commercial tidal current farms are currently hitting the water around Europe.

In 2016, the MeyGen Project and the Shetland Tidal Array became the world’s first operational tidal farms. In 2018, OpenHydro opened the world’s first tidal turbine factory. These developments are setting the scene for larger activity in the coming years which will allow tidal current to reach scale and drive down costs.