May 15, 2025 - A 1,400-Year-Old Idea That Might Save the Climate
Tidal energy is one of the oldest forms of renewable power, dating back over 1,400 years to early tide mills. But despite centuries of promise, tidal power still provides a tiny fraction of the world`s electricity. Why? In this video, we explore the engineering behind tidal range and tidal stream technologies, visit the University of Southampton`s towing tank to see how modern turbines are tested, and look at the projects currently being built in the UK that could finally scale this technology. We`ll cover the pros—predictability, energy density, low emissions—and the very real challenges—cost, complexity, and limited viable locations. Can tidal power ever compete with wind and solar, or will it remain a niche solution?
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