The Illuminating Engineering Society has published PS-05-10 – Standards for Energy Efficient Indoor Lighting, a position statement on the subject of imposing energy standards on indoor lighting technology, such as efficacy standards for luminaires.
IES “believes that technology independent approaches are the best way to provide energy reductions and to stimulate future energy savings.”
IES encourages the Department of Energy to work with organizations such as IES, IALD, ASHRAE, etc. to produce design-based energy policies.
And:
“The IES recommends that the indoor lighting limits in ANSI/ASHRAE/IESNA Standard 90.1-2007 become the basis for indoor lighting energy policy since these have been demonstrated to be the best method for reducing indoor lighting power: The use of lighting controls, which has proved to be the biggest energy efficiency measure employed, should be the mainstay of energy policy.”
“The IES recommends there be no minimum performance limits placed on light sources, drivers and luminaires but that correct measures in design and control be utilized instead.”
“The use of a lumens per watt rating for luminaires is not endorsed by the IES and does not necessarily achieve the goal of energy reduction while maintaining a high quality lighted environment. Use of technology-neutral energy standards to control indoor lighting system efficiency is far more effective and will allow a designer to implement the requirements of the design without limitations on technology.”
LightNOW says: We could not agree more.
