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FAQs about MRc2 :

The project building includes a significant amount of process lighting. Do these lamps need to be included?

I can’t find mean lumens on the manufacturer documentation. What should I do?

Do lamps purchased for task lighting need to be included in my calculations?

How should I account for LED purchases? Do I have to show that the LEDs are as energy efficient as similar mercury-containing lamps?

Our building average is over 70 picograms per lumen hour for installed lamps. Do we have to replace lamps before they’ve reached the end of their useful life in order to reach the credit threshold?

Is there a minimum number of lamps that need to be purchased during the performance period in order to achieve this credit?

We purchase lamps for some of our tenants, but not all of them. Can lamps for these tenant spaces be excluded?

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EBOM-v4 MRc2:Purchasing - lamps

Purchasing Calculator updated 4/8/2016

Trista Brown

Project Director

WSP USA

LEEDuser Basic Member

381 thumbs up

April 14, 2016

USGBC released a revised Purchasing Calculator with an updated weighted average formula for lamps. The link to the calculator in the Resources tab will take you to the updated version.

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Catarina Costa Goncalves

LEEDuser Basic Member

2 thumbs up

Wed, 02/05/2025 - 14:58

For LEED O+M v4.1 - Purchasing credit Can you achieve option of purchasing electronic equipment with only providing evidence of lamps (all LED = mercury free)? Our project only has purchased lights for this option

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