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FAQs about IEQc6.1 :

How much controllability do I need for my multi-occupant space?

I included occupancy sensors to meet the controls requirement but my LEED reviewer indicated that they weren’t sufficient. Why is this?

In order to help meet IEQc6.1 for my individual occupants I am including task lighting. Does my task lighting need to be hard wired?

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NC-2009 IEQc6.1:Controllability of Systems—Lighting

Owner Furnished Task Lighting

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Ryan L
LEEDuser Basic Member
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Under ASHRAE 90.1-2007 task lighting must have automatic shutoffs; the owner prefers not to install occupancy sensors/shutoffs at individual workstations. IEQc6.1 does not explicitly require that the task lighting have automatic shutoffs/occupancy sensors, only that they turn on/off. If this credit can be achieved by showing task lighting that is not ASHRAE compliant, doesn't it violate an over-arching prerequisite for NC-2009? From an occupant comfort standpoint it seems we can meet this credit, although from an energy code standpoint we cannot-although architect approval or not they will be using these lights. Furthermore, if furniture is excluded from all credits, should the systems furniture task lighting be as well?

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Fri, 02/24/2012 - 16:06

Hi Ryan, Not all credits work in tandem. For instance, one could argue that EQc2, conflicts with the overall energy performance for EAc1. This is just how LEED works. As a design team member you have to prioritize the requirements to pursue what makes the best and most reasonable sense for your project. In this case, it might not make sense for you to pursue EQc6.1 The beauty of LEED is that you can get to your desired certification through any number of ways.

Thu, 03/08/2012 - 15:59

What Ryan is asking about is Exception P under ASHRAE 90.1-2007. What I haven't been able to investigate is when Exception P was included in 90.1 or if there are any LEED Addenda that specifically exclude P from this credit. This credit wants users to have direct control but ASHRAE's inclusion of the auto controls and the depth of integration of 90.1 into LEED seems to indicate that a more formal resolution should take place.
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Michael Smithing
Director - Green Building Advisory
Colliers International Ltd.
LEEDuser Basic Member
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Thu, 03/13/2014 - 08:46

I've used Exception P on a CI project successfully to avoid including the task lighting in the LPD. We're now working on an NC project and have a debate with the energy modeler regarding task lighting. If we pursue IEQc6.1 with task lighting that does not meet Exception P, does it need to be included in the energy model or can it be excluded because the units will be plugged in rather than hard-wired?

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