Harnessing the future of renewable energy: Integrated insights of ocean energy

• Investigates ocean energy cost efficiency, wave prediction, extreme weather impacts, and contributions to global electricity for sustainability. • Bibliometric study analyzes the trends in citation and publication from 2009 to 2024 using Power BI statistical assessment. • Explores ocean energy and various techniques for harnessing it, including wave, tide, ocean thermal energy conversion (OTEC) and salinity gradient energy. Recently, energy consumption has increased, necessitating higher energy production through various sources. Renewable sources such as solar, wind, and hydroelectric power can complement this demand. Hydropower through surface water can generate sufficient electricity, but their output will be significantly lower than that of the ocean-based energy production. The ocean, a powerful energy source, surpasses other renewables, but requires effective implementation and scaling to reduce carbon emissions and spur economic growth. The challenges include technological maturity, funding, market creation, regulatory issues, environmental concerns, and grid integration. This bibliometric study analyzes trends in citations and publications from 2009 to 2024 using Power BI statistical assessment and text mining tools, including bibliographic coupling of documents, sources, and authors, to explore current and emerging trends in ocean energy. In this study we have adopted a three year block period for analysis. This study investigated ocean energy cost efficiency, wave prediction, extreme weather impacts, and contributions to global electricity for sustainability, observing minor growth in ocean surface kinetic energy and significant increases in potential energy due to sea level rise, while also assessing the efficiency, mechanisms, and challenges of ocean kinetic energy harvesters for marine sensors. Large-scale deployment of ocean energy necessitates careful site selection and research to mitigate the environmental impacts on marine ecosystems and ocean-atmosphere interactions, ensuring sustainable development. Advancing reliable and cost-effective technologies, such as WECs, OTECs, and tidal energy, while overcoming the challenges of biofouling, corrosion, and scaling, is crucial for the future of ocean energy and it’s widespread commercial sustainability.