Lighting: Lighting A Path To Sustainability
Facilities Net, March 1, 2014
Reducing energy use is a long-standing goal for most facility managers. Conscientious efforts to trim energy consumption reduce both costs and the size of the organization’s carbon footprint. But pressure for further gains in energy efficiency continues to grow. Energy requirements in building codes, which over time have driven substantial changes in the way buildings are built and renovated, continue to get tougher. And over the past several years, the industry has begun to adopt an ambitious new goal: to achieve the U.S. government’s target to build “net zero energy buildings” by 2030. Lighting technology advances are helping meet the goal of greater energy efficiency savings.
Because lighting accounts for between 20 to 30 percent of a building’s electricity load, the bar keeps getting raised for lighting energy performance. For example, ASHRAE 90.1-2013 has changes to improve daylighting and daylighting controls and space-by-space power densities.