This book aims to support anyone who wants to maximize performance and return on investment when selecting a synchronous generator. The goal is that by finishing, you should be able to select the best technical and economical solution for an application. It is mostly a technical book, but also presents commercial value to allow comparison between technologies and evaluate return on investment. Covers pre-studies, specification and selection of the most adequate solution. Moreover it includes the essentials with simple language, therefore it is adequate for students and professionals in all levels and coming from all sectors. Its motivation comes from the fact that when selecting turbo-generators sets investors engineers pave much more attention to the turbines details; generators end up been choice as commodities and as result the whole system suffers from availability issues and less return on their investments. Would you wish to get insights on key elements so that the generator you have to deal with will be environment friendly, reliable, and long lasting, and ultimately it enhances your return on investment? You are mostly welcome! You will certainly enjoy this book!