Optimize energy performance - lighting power | U.S. Green Building Council
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LEED ID+C: Commercial Interiors | v3 - LEED 2009

Optimize energy performance - lighting power

EAc1.1 | Possible 5 points


To achieve increasing levels of energy conservation beyond the referenced standard to reduce environmental and economic impacts associated with excessive energy use.


MANDATORY POINT MINIMUM: Project registered on or after April 8, 2016 must earn four points in this credit, but can come from any of the four sub-sections.

Reduce connected lighting power density below that allowed by ANSI/ASHRAE/IESNA Standard 90.1-2007 (with errata but without addenda1) using either the space-by-space method or by applying the whole building lighting power allowance to the entire tenant space.

The points earned for reducing lighting power density below the standard are as follows:

Lighting Power Density Reduction
below the Standard
15% 1
20% 2
25% 3
30% 4
35% 5

Project teams in California may use Title 24-2005, Part 6 in place of ANSI/ASHRAE/IESNA Standard 90.1-2007.

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