Clean generation in microgrids
The aim of this chapter is to present a broad overview of the main clean generation methods existing today in microgrids. Since a complete and detailed analysis of each of them would become impractical for a single chapter in a book, and also considering that there exist advanced technical literature addressing these types of generation, the clean generation systems are succinctly described, and the main characteristics, including current market status and some advantages and disadvantages, are presented. Conventional centralised power generation, such as nuclear and fossil-fuel-based power centralised power plants, are not included in this chapter. Following the sections presenting the different generation systems, the last section presents a case study of a microgrid covering a small city located in a cold region in Japan showing that in a given microgrid interconnected with a larger centralised grid, its annual total demand can be supplied with 100% of clean energy and renewable energy.