ATLANTA — According to results of newly approved research funded by ASHRAE, the application of 30 specific energy savings measures across all building types and climate zones resulted in a near 50 percent reduction in energy usage.

The national weighted change is 47.8 percent more energy efficient than Standard 90.1-2013 based on site energy and 47.8 percent more energy efficient than 90.1-2013 based on source energy.