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FAQs about MRc4 :

There are no mercury-containing lamps installed in the project building. Can we upload a signed statement from our property manager instead of completing the credit form and documentation?

A large multi-tenant project does not have a uniform lighting standard, therefore there are a number of different types of lamps are installed on the project. How should we go about documenting this credit?

Do we need to provide a purchasing plan if the lamp inventory of currently installed lamps shows that the average mercury content is already below 90 picograms per lumen-hour?

Do lamps for task lighting need to be included in the purchasing plan?

Do mercury-free lamps need to be included in Table MRc4-1 Lamp Purchasing Plan and Table MRc4-2 Performance Period Lamp Purchasing?

All of the outdoor fixtures in the project building are mercury-free. Can we exclude all outdoor fixtures from the purchasing plan?

The project building is a large multi-tenant building and tenants are responsible for their own lamp purchases. Can lamps in tenant spaces be excluded?

How do you know if a lamp meets the NEMA guidelines, and can therefore be excluded?

The project building includes a significant amount of process lighting (i.e. sports arena lighting or studio lighting). Do these lamps need to be included?

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Forum discussion

EBOM-2009 MRc4:Sustainable Purchasing—Reduced Mercury in Lamps

Applying to LEED 2009 for NC

Profile picture for user emilycatacchio
Emily Catacchio
Sustainability Specialist
Wight and Company
LEEDuser Basic Member
415 thumbs up

I'm working on a project that would like to apply this credit to a new construction building. The new building is part of a college campus, but the LEED boundary only includes the new building. To earn this credit as an ID point under LEED NC is it sufficient to apply this method to just the new building and any lamps within the exterior LEED boundary? OR Do we need to include this provision as a campus-wide program?

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Profile picture for user barry7
Barry Giles
Founder & CEO, LEED Fellow, BREEAM Fellow
BuildingWise LLC
LEEDuser Expert
224 thumbs up

Wed, 07/27/2011 - 17:23

Great question. As you are conducting a LEED NC in the one single building in theory you should only need to cover the EB portion with compliant purchasing of all the light bulbs in that one single building. (I'm leaving aside the fact that the reviewers may or may not pass this as an ID credit). However in practice this may not feasible as you will have compliant and non compliant light bulbs in operations storage and making certain that ONLY compliant bulbs are used in your building may be un-enforceable. Better to encourage a full campus wide MR credit compliance to overcome this possibility, even though it will be a tremendous task.
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Jamie Brady
Project Manager
EMO Energy Solutions
LEEDuser Basic Member
10 thumbs up

Wed, 08/17/2011 - 21:22

Emily I would include any fixtures within the LEED Project Boundary, including exterior lights. We've earned this as an Innovation credit many times, including on campuses and military bases that have existing purchasing contracts that limit the selection of replacement bulbs. You can develop a suggested purchasing plan for replacement lamps for all of the lighting fixtures, and have the campus facilities department review/approve the plan. Obviously, you might want to check with them first to see what typical manufacturer(s) they use currently.

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