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!
Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5907 thumbs up
February 1, 2015 - 4:50 pm
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.
Danna Richey
Energy Analyst and Sustainability ConsultantNewcomb & Boyd
2 thumbs up
November 8, 2018 - 2:56 pm
LEED Interpretation 10400 was updated on January 5, 2018, and provides guidance to determine the UPS "rated power" for LEED calculations purposes.