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Three separate points to pursue
In a marked change from LEED-CI 2.0, which only addressed daylighting, this credit addresses occupancy and daylighting sensorsA lighting feature that takes advantage of sunlight to cut the amount of electric lighting used in a building by varying output of the lighting system in response to variations in available daylight. They are sometimes referred to as "natural lighting control sensors " or "photocells." . Three points are available, with each of the following strategies earning you one point:
- Strategy 1: Install daylight controls or sensors within 15 feet of the windows or skylights in all...
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2 Comments
Discrepancy between Reference Manual and Template
I am seeing a discrepancy between the LEED template and the IDC reference manual for EAc1.2.
The reference manual for second point (B) states the daylighting must be for 50% of the lighting load. The template states 50% of the connected lighting load in daylit areas. Which is it - total lighting load or lighting load in daylit areas. Second, if it is the later, what is the definition of a daylit area (15 feet from window or skylight)?
Thanks
Amy Rider replied Sustainability Consultant, KEMA Services Jul 28 2010
We got clarification on this question from GBCI directly:
"The current template is a BETA version and I can see the discrepancy. The issue is fixed for the post-BETA form which will be available shortly. The appropriate calculation for OPTION B is using the total lighting load in all areas.
Daylit space for this credit is 15’ from window or skylight."
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