A City as Good as Its Buildings
"By looking at our building stock as an integrated whole, cities will be able to leverage energy savings more broadly. Of course, the degree to which buildings can benefit from modernization varies. Some buildings will be able to achieve significant savings through modernization, while others will only realize minimal reduction of energy usage. By creating clean energy districts, cities can measure performance of all buildings within a certain area, allowing for higher-performing buildings to offset lower performing ones."