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Lighting Controls Association

The Lighting Controls Authority

What’s New for Lighting in the IECC 2009 Model Energy Code

02/09/2009 by Craig DiLouie Leave a Comment

IECC 2009 contains a number of changes impacting lighting for commercial buildings, including:

• Forced choice of compliance with entirety of IECC or 90.1
• Required circuiting for independent control of lighting in “daylight zones”
• Revision of additional retail display allowances
• Added exemptions to interior lighting wattage that must be counted for compliance
• Splitting the exterior power allowance using a system of outdoor lighting zones
• Clarifications and practical application language changes

Filed Under: Articles, Energy Codes

What’s New for Lighting in ASHRAE 90.1-2007

03/12/2008 by Craig DiLouie 1 Comment

In terms of lighting, ASHRAE 90.1-2007 clarifies the Standard’s intent and enacts several refinements but otherwise doesn’t revise the lighting power density (W/sq.ft.) limits from the 2004 version, which itself was 20-25 percent more stringent than the 1991/2001 versions.

Filed Under: Articles, Energy Codes

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