There are many valuable lessons for all countries and companies aspiring to initiate renewable energy projects to be learned from the case studies analysed in this book. I often assured my student Research Assistants that I learned far more from them than they did from me in the course of the research they performed. As indicated previously, I have summarized the principal lessons of the factors of success or failure of each case study, the problems encountered and the measures taken to try to overcome them. There are some general conclusions that apply to all the case studies, however, that I mention here. Surely the most important ingredient of successful projects is knowledgeable and dedicated leadership. There are many vitally important tasks to be performed for a successful project, and competent leadership is essential.