The Earth's oceans cover more than 70% of the planet's surface and hold immense potential as a renewable energy source. Unlike terrestrial sources, the ocean offers a variety of energy forms-tidal movements, wave actions, thermal gradients, and salinity differentials-that can be harnessed to produce electricity sustainably. As the world searches for cleaner energy alternatives, ocean and tidal energy have emerged as promising options in the pursuit of carbon neutrality and energy diversification. Ocean energy refers to all the energy derived from the movement and physical characteristics of the sea, while tidal energy is a subset, specifically generated from the rise and fall of tides. These phenomena are predictable and consistent, offering a level of reliability that other renewable sources like solar and wind may lack. Ocean and tidal energy represent an exciting frontier in renewable energy. With vast potential, particularly for island nations and coastal regions, this form of energy could contribute significantly to a diversified and resilient energy future. As technological and economic barriers are gradually addressed, ocean energy is poised to play a vital role in global sustainability goals.