The electricity sector has more ties with sustainable development than any other one. Reliable and adequate supply of electricity has become a requirement for almost all productive economic activities, access to electricity is key to improve health and education outcomes of the most disadvantaged populations and power generation worldwide is responsible for about 40% of all greenhouse gas emissions. This accounts to saying that achieving sustainable development will require electricity markets that are particularly well managed. The challenge is even greater in developing electricity markets, where institutions and access to capital are much more problematic than in developed countries. This e-book focuses on many of these challenges. Cases from Latin America (Brazil, Columbia and the entire sub-continent), the Caribbean countries and Senegal are used to illustrate new management strategies and tools to help achieving more sustainable electricity markets.