Building energy research focuses on studying ways to make buildings more energy-efficient, sustainable, and environmentally friendly. This research area includes investigating new technologies, materials, and methods to reduce energy consumption in buildings, optimize energy usage, and improve overall building performance. Researchers in this field work on topics such as building design, energy management systems, renewable energy sources, and building automation. The goal of building energy research is to create buildings that are more comfortable, cost-effective, and energy-efficient, ultimately reducing the environmental impact of buildings on the planet.