20.500.12556/DiRROS-31910 The effect of surrounding topography on calculated solar gains in buildings using dynamic building energy modeling (BEM) This paper presents a methodology for integrating terrain shadows of micro-locations into building energy modeling (BEM) for topographically diverse regions. Dynamic energy simulations rely on high-resolution weather data sourced from reference locations that cover a climate zone. As soon as the micro-location of the simulated building is away from the weather reference site, topographic shading can trigger deviations. This study developed a three-dimensional reproduction of the micro-location’s surrounding terrain as a simplified ring model based on available horizon height captured from PVGIS. In a radius of 20 km, 4 Slovenian cities from the same climatic zone have been analyzed and compared with a baseline calculation. When comparing solar gains (SG) of chosen micro-locations, a tendency is noticeable—the lower the Sky-view Factor (SVF), the higher the SG deficit. Additional calculations have been conducted for different SVF/aspect ratios and used in a geographical survey. Results show that at least half of the Slovenian land surface which is inhabited by 21% of the population, has characteristics where topography influences calculated Solar Gains (SG). In those areas, the potential SG deficit is distributed from barely perceptible to more than 25% in certain areas. This approach enhances the precision of BEM in topographically varied landscapes and can inform better design and planning decisions. hourly dynamic method solar gains sky-view factor elevated horizon BIM sončno obsevanje energetsko modeliranje stavb Slovenija true false true Springer Angleški jezik Slovenski jezik Neznano 2026-08-18 08:09:00 2026-08-18 08:11:53 2026-08-19 03:46:19 0000-00-00 00:00:00 2026 0 0 Soavtorji Matej Ogrin, Tim Gregorčič, Katja Malovrh Rebec Str. 177-193 0000-00-00 PostprintKoncna Objavljeno NiDoloceno 0000-00-00 0000-00-00 2026-02-22 2027-02-21 551.52:69(497.4) 2366-2565 10.1007/978-3-032-14019-7_13 270934275 270251779 https://doi.org/10.1007/978-3-032-14019-7_13 1 507484e7-9acb-11f1-af5a-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=49639 RAZ_Hausmeister_Alen_2026.pdf RAZ_Hausmeister_Alen_2026.pdf 1 8C0B97776508FC740E28149ED18ABEC4 5f633b53ef2d2c43d835f1a0cfd74c451df9bf3abbedb172f2815d343f926c0b 9d7acc2d-9acb-11f1-af5a-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=49640 Zavod za gradbeništvo Slovenije 0 0 0