The world’s oceans are the largest collectors and storage of solar energy and have an enormous potential to supply growing worldwide energy demands, commodity products like ammonia and fresh water. This case study focuses on the island states for implementation of the Ocean Thermal Energy Conversion (OTEC) in the foreseeable future within two decades. Small Island Developing States (SIDS) and other island states exclusively rely on petroleum-liquid based power generation, specifically fuel oil and diesel. For example, power generating capacities of Mauritius, Reunion, St Thomas and St Croix are 480 MW, 435 MW, 200 MW and 120 MW, respectively. Fossil…