During 2012, a consortium led by Ecofys undertook a study for the European Commission to provide guidance to Member States and the EC with regards to the implementation of the requirements for nearly zero-energy buildings under the Energy Performance of Buildings Directive (EPBD). The study features benchmarks for nearly zero-energy buildings for different European climates, an analytical framework for evaluating Member States national plans for increasing the number of such buildings, a reporting template for these plans and an analysis of the convergence between cost optimal levels and nearly zero-energy buildings.