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Principles for nearly Zero-Energy Buildings

While the EPBD requires that from 2020 all new buildings are nearly Zero-Energy Buildings (nZEB), the proposed definition leaves a number of uncertainties, specifically on the ambition level of such buildings in terms of energy consumption and CO2 emissions. This study has been elaborated to support the implementation of the re-cast Energy Performance of Buildings Directive (EPBD) by developing a sustainable, effective and practical nZEB definition for nearly Zero-Energy Buildings.

This report aims to contribute to reaching a common understanding of nZEB by:

  • Providing a starting point for a nZEB definition by analyzing existing concepts and initiatives.
  • Lining out main challenges and potential solutions for a nZEB definition.
  • Compiling a possible set of principles for nZEBs.
  • Applying such principles on reference buildings and assess related effects.
  • Depicting related technological, financial and policy implications at EU level, and
  • Giving an outlook on necessary further steps towards a successful implementation of nZEBs.

The study is of specific interest for policy makers at EU and Member State level, as well as for the research community.

Following the elaboration of general principles at the EU level, BPIE elaborated in 2012 dedicated studies for Poland, Romania and Bulgaria in order to evaluate and propose ways to implement them at country levels into support of national efforts for EPBD transposition.

BPIE also designed a poster presenting the main challenges and principles for nearly Zero-Energy Buildings, which can be viewed here.