This article unveils how the complex multilevel governance system of a developing country affects environmental policy implementation. The Philippine Renewable Energy Act is discussed as an in-depth case study. The law was passed in 2008 to increase the share of renewables in the electricity mix, but its implementation remains a challenge. Analysing the complex multilevel governance system of the Philippines, this article shows how interjurisdictional coordination and the distribution of power resources and capacities affect the implementation process. This qualitative research is based on key documents and insights from 48 expert interviews. From a theoretical perspective, research about power in central–local relations can make a useful contribution to current multilevel governance concepts.