The HouseZero project at Harvard retrofitted a pre-war home on campus, creating a model of energy efficiency. Michael Grimm

“We’re shattering the belief that you need to build new buildings to be efficient,” Ali Malkawi, a professor of architectural technology who leads the CGBC program, told Curbed. “We want to show how this can be replicated almost anywhere, and solve one of the world’s biggest energy problems, inefficient existing buildings.”

Source: Harvard’s HouseZero project wants to revolutionize green building – Curbed