Tidal power is a form of renewable energy that harnesses the movement of ocean tides to generate electricity. It relies on the gravitational pull of the moon and the sun, which causes the rise and fall of sea levels. Tidal power systems typically use turbines or barrages to capture this energy during high and low tides. This energy source is predictable and consistent, making it a reliable option compared to other renewable sources like wind or solar. Tidal power plants can be built in coastal areas where tides are strong, contributing to a sustainable energy future while reducing greenhouse gas emissions.