The evaluation of the energy governance cluster Program Based Operations (PBOs) is one of seven components of a broader evaluation on the use of PBOs by the AfDB in 2012-2017. This evaluation examines eight PBOs focused on energy, which the AfDB approved and implemented in five countries (Angola, Burkina Faso, Comoros, Nigeria and Tanzania). The objective of this cluster evaluation is to assess the relevance, effectiveness, efficiency and sustainability of the eight PBOs, synthesize the results and draw relevant lessons for the future design and management of PBOs by the Bank.