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Researchers Study Demand-Responsive Dimmable Lighting

by Craig DiLouie, Lighting Controls Association 

Demand response is now beginning to be required by codes and standards—in particular, at present, California’s Title 24-2008 energy code and ASHRAE 189.1 standard for designing high-performance green buildings. To reduce peak demand with lighting, we can turn it off, turn it down or use it more efficiently. Since lighting is critical for productivity and safety in many indoor spaces, turning it down instead of off is usually more desirable. Dimmable lighting therefore has a strong potential role to play in demand response. Researchers at NRC-IRC put this notion to the test, conducting a study to determine how far, how fast and over what period lighting can be dimmed before occupants notice and are adversely affected.  Read this special report:

http://www.aboutlightingcontrols.org/education/papers/2010/2010_demand-response.shtml