Net-Zero Buildings – Let us Aim Higher!
The building sector is a significant contributor to global energy usage. For the U.S., nearly 40 percent of the nation's energy is consumed by homes and commercial buildings . The development of building energy savings targets represents a main keystone in any effort in confronting the challenges of climate change. This is particularly important in light of a growing population and urbanization levels in both developed and developing countries, as seen in Figure 1.