This study is part of the International Energy Agency's (IEA) ongoing analysis of global renewable energy markets and policies, building on the key principles for effective policy design identified in "Deploying Renewables: Principles for Effective Policies" (2008). This paper examines the situation in 6 of the 10 countries that comprise the Association of Southeast Asian Nations (ASEAN): Indonesia, Malaysia, the Philippines, Singapore, Thailand and Vietnam. In 2007, ASEAN-6 represented more than 95% of energy demand in southeast Asia.