Dr. Ehsan Mostavi is CTO and Co-Founder of dataArrows, a company develops building digital twin solutions. He is very active in scientific communities and is an associate editor for Clausius Scientific. He is a licensed Professional Engineer (PE), and has more than a decade of work experience in the construction and building industry. In the past few years, he focused on the development of solutions for implementation of the Augmented Reality technology in construction projects. He received his Ph.D. from the Architectural Engineering program at Penn State University and hold a Master’s degree in Civil and Environmental Engineering. Dr. Mostavi’s area of expertise includes building energy simulation, smart grids, neural networks, optimization algorithms, and application of Virtual/Augmented Reality (VR/AR) technology in building projects.