Scotland Is Making Most of the World's Tidal Stream Power — And Almost Nobody Noticed

In 2025, four turbines on the seabed of the Inner Sound, between mainland Scotland and the island of Stroma, generated 13.1 GWh of electricity. According to figures reported by Ocean Energy Europe, that was more than 80% of all the electricity produced by tidal stream turbines anywhere in the world that year. This video looks at the six things behind Britain's lead in tidal stream power: the fast water of the Pentland Firth, the European Marine Energy Centre in Orkney, Orbital Marine Power's floating O2 turbine, machines that have now survived years underwater, a power source that can be predicted decades ahead, and the plans to scale up. It also covers what is still small and unproven: MeyGen is 6 MW today, the technology is still expensive, and the 59 MW expansion is targeted for 2027–2029. Chapters: 0:00 The fastest water in Europe 1:28 The honest part 2:34 The Pentland Firth 3:50 The first tidal turbines 5:03 #6 The fastest water 5:56 #5 The test centre: EMEC, Orkney 6:52 #4 The floating turbine: Orbital O2 8:09 #3 Survival 9:07 #2 Predictability 9:50 #1 The scale up 10:43 The number: 80 11:14 How the pieces lock together 11:46 What comes next Sources: Ocean Energy Europe figures via MeyGen / Ampeak Energy (2025 tidal stream generation) Ampeak Energy: MeyGen project and Contracts for Difference (59 MW) Orbital Marine Power: O2 launch (April 2021) and O2-X plans European Marine Energy Centre (EMEC), Orkney University of Oxford / Royal Society: Pentland Firth tidal resource study (2013) Marine Current Turbines: SeaGen, Strangford Lough (2008) Severn Tidal Power Feasibility Study (2010) Figures and timelines are as of October 2026. Plans, targets and dates may change. #TidalEnergy #Scotland #Orkney #Britain #Engineering