The experts making sure marine mammals are protected by underwater green tidal power.
Firstly, sonar devices, that send out a very high frequency "ping" that seals can't hear but which builds up an image of their activities - imagine something out of an action movie but the orange shadow wiggling across the screen is a seal not jaws.
Some of the challenges faced highlight some of the reasons why tidal power is far behind wind in terms of development.But where there's a will, there's a way, and after some test deployments, design changes and sorting out the power supply, this piece of kit has been sunk underwater and plugged in next to tidal turbines off the coast of John o' Groats.Where exactly? In the Pentland Firth, which boasts some of the strongest, fastest tidal currents in the world.
They have previously deployed equipment at this site in 2016, with data collected between 2017 and early 2020. He says: "So there's a real conservation concern in terms of new industries being developed in areas that we want to minimise any potential impacts on these populations."