This course traces energy flows through the building envelope from the climate to the occupant, placing emphasis on the phenomenology and spatial potential of sensory experience. Students study how architecture mediates the climate by harnessing these energies through the strategic use of glazing, shading, insulation, mass, and ventilation. The course explores how fundamental principles of human comfort, heat transfer, solar geometry, and fluid dynamics inform architectural explorations. The class also covers how electricity and fuel are commonly used in buildings for lighting, ventilation, heating, and cooling, and how these systems interact with the architecture. The course discusses the implications for this energy use, including mitigation of, and adaptation to, climate change, passive survivability and resilience, and the systemic inequalities promulgated by public policy and contemporary building culture. In the process, students become  familiar with the rapidly changing context of the energy grid, renewable energy, battery technology, and Zero Energy Building.