The Earth's oceans hold an untapped potential for renewable energy generation, with projections indicating that ocean energy could reach 352 GW of installed capacity by 2050, comparable to the current global nuclear capacity. However, the development of ocean energy technologies has been slow due to various challenges. Infrastructure costs, engineering constraints, and the corrosive nature of sea salt on energy generation systems have impeded progress. Additionally, the diffuse nature of ocean energy sources poses a challenge compared to the concentrated resources found on land. Offshore wind power emerges as a promising solution, offering stable and efficient energy production, proximity to coastal populations, and environmental benefits like reduced land use and ecosystem disturbance. The advancement of wind turbine technology, including the development of larger models and offshore wind mega-projects, is expected to drive the growth of offshore wind energy in the coming years. In contrast, tidal power, although stable and predictable, faces limitations in site selection and infrastructure requirements. The construction of tidal barrages in high-tide regions restricts the scalability of tidal power projects. Despite these challenges, both offshore wind and tidal power represent significant opportunities for harnessing renewable energy from the oceans and advancing towards a more sustainable energy future.