Book excerpt: REDEC 2023 is a specific scientific conference that helps in finding innovative and adequate solutions for energy saving and production in developing countries During the first five editions, participants from across the globe have discussed the scientific issues that were presented and subsequently published in IEEEXplore Due to the fruitful results, the organization of REDEC has added new topics on smart grids, DC micro grids, energy management, electric transportation, green production and decarbonization, giving more opportunity to a wide profile of participants to present their work in the domain of renewable energy and related research Papers written in either English or French are acceptable