CISBAT 2019 focuses on Climate Resilient Cities – Energy Efficiency & Renewables in the Digital Era. As our climate is changing and awareness is rising with regard to the depletion of traditional energy resources and green house gas production, search for solutions in renewables and energy efficient building strategies needs to speed up. Academic research in this context spans a wide range of topics, from nano to regional scale, drawing from expertise in fields as diverse as materials science, meteorology and machine learning.