Findings in this new ZEBRA2020 study show that there is still a way to go in establishing official national nZEB levels for buildings, even though most countries have recently revised existing rules, regulations and guidelines, and facilitated means enabling highly energy conservative buildings in accordance with the EPBD. Determined differences in the structure of national and regional management, attitudes and economic structures are all factors found to have both a negative and positive effect on the progress and implementation of nZEBs in the different countries.
The study suggests that a number of countries are poorly prepared for implementing nZEBs by 2020 and that there is a great call for increased knowledge on new technology on all levels in the building industry along with economic incentives, building of pilot examples to follow, and in fact, utilizing the advantages that nZEBs bring.
It is difficult to draw a clear picture of main, major and minor barriers and drivers among different countries, building categories, stakeholders and so on. But even so, this study highlights, in target countries, some key common points such as: there are stronger barriers for energy efficiency renovation versus new buildings, and also stronger barriers in the residential sector than for non-residential buildings; decision making processes in general and especially in multi-family housing with owner-occupied dwellings are crucial.