The City of Jakarta, as the heart of Southeast Asia’s largest economy, faces several challenges concerning energy use and environmental sustainability. The Sustainable Energy Transition (SET) roadmap provides a detailed assessment of the region’s current energy situation against the SDG 7 indicators and presents several scenarios developed using the city’s data, considering existing energy policies and strategies, and reflecting on other development plans. This roadmap contains a matrix of technological options and enabling policy measures for the City Government to consider, in meeting its emission reduction target while sustaining robust economic growth.