The way to limit emission - energy efficient buildings. The example of the largest facility in Poland in nearly Zero Energy Building standard

In Szczecin a mixed-use complex Posejdon is being constructed. It will be the first nearly zero-energy building (NZEB) in Poland that meets the strict ecological standards that all buildings will have to meet after January 2021. The project was presented at the COP24 United Nations Climate Change Conference in Katowice. The calculated building CO2 emission is very low. Based on the example of the Posejdon complex’s office-service section before and after renovation modern technical solutions for meeting the buildings energy demand and the resulting reduction of CO2 emission have been presented. The emissions were obtained after the calculation of energy use in accordance with Polish and European regulations concerning the energy performance of buildings using climatic conditions taken from a Polish meteorological database. The described renewable energy technologies implemented in the Posejdon building, serve as a reference to export management and design strategies to other NZEB with similar characteristics in the same region.