Scotland has installed the world’s most powerful tidal turbine, a major milestone for marine renewable energy. At full capacity, this single underwater machine can generate enough electricity to power over 2,000 homes, proving that the ocean can deliver serious clean energy—not just experimental promise. Unlike wind or solar, tidal energy is uniquely predictable. Ocean currents are driven by gravitational cycles between the Earth, moon, and sun, meaning tidal flows can be forecast years in advan