CA EPBD III MEETING IN MALMÖ October 10 , 2013. REHVA nZEB technical definition – 2013 revision. Jarek Kurnitski Professor, Vice-president REHVA Tallinn University of Technology Aalto University [email protected] www.nzeb.ee. Presentation outline.
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EPBD definitions (article 2):
Other services may or may not be included in the rating – included in REHVA definition
For thermal and electrical energy it applies:
Delivered – exported energy = energy use – on site renewable
net ZEB has exact performance level of 0 kWh/(m2 a) primary energy
nZEB depends on national conditions
New element in the system boundary
Latest updates of regulation – nZEB under preparation:
Primary energy requirements for 9 building types (apply from Jan 9, 2013)
* the low value is largely due to improvement in electrical appliances and adoption of demand controlled lighting and ventilation, on top of envelope improvements. Furthermore, the low amount of hot water required in offices makes the total energy need lower than for residential units.