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CI-2009 EAc1.4:Optimize Energy Performance—Equipment and Appliances

More on UPS s

Hi, I understand all the previous discussion UPSs but our situation is just a tad different, The project in question is intensely tech related, and the UPS needed as backup is a 3 phase, 50,000 kVA model. There is nothing this heavy-duty on the Energy Star website. There are a few that range up to 40,000 KVA. The model that was installed (I think the electrical engineer may have been unaware that UPSs had been included in the E-Star list) is NOT Energy Star. The max rated power that it can provide is about 45,000W and max input about 49,000W. So question 1, can I exempt it because there is no Energy Star equipment of adequate capacity? Question 2, if I have to include it, I figured I would calculate rated power as rated input minus rated output, which would give me the maximum draw of the device. I do not know much about electronics: is this reasonable? Is there any (nightmare) scenario where the reviewer would force us to count the entire input rated power? This would drop us below 50% energy star and we would be ineligible for LEED-CI certification. Thanks!

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Sun, 02/01/2015 - 21:50

1. I think that if this type of equipment is Energy Star eligible then it counts and would not be exempt. 2. I am not sure how this gets reviewed but it would certainly makes sense to isolate the draw of the equipment itself and not everything connected to it.

Thu, 11/08/2018 - 19:56

LEED Interpretation 10400 was updated on January 5, 2018, and provides guidance to determine the UPS "rated power" for LEED calculations purposes.

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