This ebook presents readers an interesting set of papers dealing with renewable energy, prepared as part of the project "Small Developing Island Renewable Energy Knowledge and Technology Transfer Network" (DIREKT). The project is a cooperation scheme involving universities from Germany, Fiji, Mauritius, Barbados and Trinidad & Tobago with the aim of strengthening the science and technology capacity in the field of renewable energy of a sample of ACP (Africa, Caribbean, Pacific) small island developing states, by means of technology transfer, information exchange and networking.