Poland

The School and Kindergarten Complex in Podgórzyn / © J. Źurawski In 2016, the Municipality of Podgórzyn in the Lower Silesia region of Poland embarked

© Municipality of Sulejów How was this building procured? In the tender documentation, the Contracting Authority  asked the bidders to prove that they

Final energy consumption for heating and ventilation: 6.9 kWh/m2/a

Building part / RIC Pro-Akademia / National requirements for nZEB binding from 01/01/2021
External walls / 0.085 / 0.200
Roof / 0.085 / 0.150
Floor on the ground / 0.114 / 0.300
Windows / 0.800 / 0.900

Annual demand for final energy for heating and ventilation: 29 kWh/m2/a
CO2 emissions: 5.35 kg CO2 m2/a
Coverage of annual electricity demand by onsite renewable energy generation: 36%

Building part / Posejdon / National requirements for nZEB binding from 01/01/2021
External walls / 0.184 / 0.200
Roof / 0.144 / 0.150
Floor on the ground / 0.297 / 0.300
Windows / 0.900 / 0.900

Primary energy consumption: 0 kWh/m2a

Primary energy consumption: EP = 66.81 kWh / (m2a), i.e. 29.6% less than required for nZEB buildings (technical requirements in force since 01/01/2021) and 52.3% less than the legal requirements that were in force at the time of design.
Building tightness: n50=0.3 1/h (according to blower-door test PN-EN 9972 method 2)

Primary energy consumption: -12 kWh/m2 (plus-energy building)

Building part / RES Technology Transfer Centre / National requirements for nZEB in force since 01/01/2021
External walls / 0.11 / 0.20
Roof / 0.08 / 0.15
Floor on the ground / 0.06 / 0.30
Windows / 0.80 / 0.90

Source: Jaczewski, M. and Firląg, S., 2014. Charakterystyka budynku Centrum Transferu Technologii w obszarze OZE w kontekście wymagań dla standardu pasywnego. Acta Innovations, (13), pp.32-40.