Building owners can save more than 50% on a one-for-one basis, and up to 80% with the use of controls.
Lighting accounts for roughly 15-20% of the electricity use in a typical commercial building, and the most commonly used light source in these indoor applications is the linear fluorescent lamp. In 2010, lighting systems using linear fluorescent lamps accounted for over 75% of the installed lighting in commercial buildings. Troffer luminaires, commonly available in 1'x4', 2'x4', and 2'x2' sizes, represent half of all commercial fluorescent lighting fixtures. The total installed stock of troffers in the United States is estimated to be over 360 million luminaires.
Changes in the ILC
After four years and having met its goals, the Interior Lighting Campaign- as it is known- is being discontinued. In its place, the Integrated Lighting Campaign is being envisioned in a way that will build off of the successes and resources of the ILC.
There are many ways in which lighting can be integrated into other building systems. New innovative ways of using lighting controls, interfaces, and other strategies will be a primary objective of the Interior Lighting Campaign moving forward. The focus will remain on lighting, while helping to facilitate more innovative solutions both among those who have historically participated in the ILC and those that offer support for those implementing innovative lighting in their buildings.
This effort is a collaboration between the DesignLights Consortium® (DLC), Illuminating Engineering Society (IES), the International Facility Management Association (IFMA), interNational Association of Lighting Management Companies (NALMCO), the Lighting Controls Association (LCA), U.S. General Services Administration (GSA), and the U.S. Department of Energy. Organizations that do not directly own or manage facilities, but support energy efficiency in buildings through the adoption of high efficiency lighting products and strategies are eligible to join as supporting partners. Supporting partners, including utilities, manufacturers, energy efficiency organizations, lighting designers, and ESCOs are listed on the Supporters page of this website. Supporters are encouraged to share information about the ILC with their customers. In addition to being listed on the ILC website, supporting partners may be recognized for their involvement with participating sites that receive ILC recognition. The U.S. Department of Energy provides technical support to the campaign and its participants.