Blue Energy refers to the energy generated from the difference in salt concentration between seawater and freshwater. This process, known as salinity gradient power, harnesses the natural energy created when these two types of water mix. It can be captured using various technologies, such as pressure retarded osmosis and reverse electrodialysis. This renewable energy source has the potential to provide a sustainable and environmentally friendly alternative to fossil fuels. By utilizing the vast amounts of ocean water available, Blue Energy could contribute significantly to global energy needs while reducing greenhouse gas emissions and promoting clean energy solutions.