This report, developed by the United Nations Economic and Social Commission for Asia and the Pacific in cooperation Asian Development Bank, offers an evidence-based look at progress at the regional and country level, providing an overview of long-term trends since 1990, and focuses on progress achieved in the most recent period, 2012-2014. Furthermore, it examines the key drivers behind progress, as well as identifies major challenges to achieving energy access, efficiency, and renewable energy objectives. Evidence is drawn from the Global Tracking Framework (GTF) data, as well as other international sources to provide a comprehensive view of progress in light of regional and national contexts. A strong focus is also placed on examining national policy frameworks and offering case studies to illustrate national approaches to common challenges faced by countries advancing the sustainable energy agenda