20.500.12556/RUL-124722 Contribution of energy storage to the transition from net zero to zero energy buildings Recently, intensive technological development in the field of energy efficiency of buildings has occurred, which should enable the transition from nearly zero (nZEB), through net zero (NZEB) to ultimate zero energy buildings (ZEB). The last stage will also require a transition from the grid to onsite storage of each energy carrier needed for the operation of building technical systems (BTS). In the article, the method of optimization of energy storage is presented and demonstrated on the example of all-glass NZEB office buildings in different climates. The impact of energy storage was estimated by production matching fraction fpr,match and by the building autonomy factor (AUT). The metrics were determined by dynamic modelling of buildings with south-facing glazed BIPV façades. It was found that optimum energy storage capacities are in the range between 0.01 and 0.06 kWh/m2 for heat storage, 0.03 to 0.08 kWh/m2 for cold storage and 0.03 to 0.04 kWh/m2 for batteries per 1 m2 of useful area of the building. By integrating optimized energy storage in BTS, the fpr,match could be increased from 43% to 61% and AUT from 44% to 54%, indicating that energy storage significantly contributes to the transition of NZEB towards ZEB. zero energy building building-integrated photovoltaics annual utilization factor production matching fraction building energy autonomy nič energijske stavbe integrirani PV moduli letni faktor izkoriščenosti delež ujemanja proizvodnje energijska avtonomija stavb true false true Angleški jezik Slovenski jezik Članek v reviji 2021-02-12 10:50:41 2021-02-12 10:50:46 2022-09-04 04:01:04 0000-00-00 00:00:00 2021 0 0 Str. 1-13 Vol. 236 Apr. 2021 0000-00-00 PostprintKoncna Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 2023-02-12 620.9:502.12(045) 0378-7788 10.1016/j.enbuild.2021.110751 51396355 25395200 RAZ_Medved_Saso_2021.pdf RAZ_Medved_Saso_2021.pdf 1 6A900F1F930F700358E634688F750173 fc6b92eec0bbc4d3a5b17c9e912efb560f730222f2456a477e9afcd24187b161 9beefa44-a1bb-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=140291 https://www.sciencedirect.com/science/article/pii/S0378778821000359?via%3Dihub 1 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=140290 Fakulteta za strojništvo 0 0 0