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NC-2009 EAp2:Minimum Energy Performance

Data Center - ASHRAE LPD

Profile picture for user simonsiva22
SAMY Chamy
Enginneer
T&T Green
LEEDuser Basic Member
9 thumbs up

Dear All:- we are doing LEED NC project for data center which one is correct base case LPD for data center in building area method which lighting categories we take if we go with space by space method (For Server rooms) Kindly tell a specific categories in ASHRAE 90.1.2007 for both build area and space by space method

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Profile picture for user santiago5
Santiago Velez
ASHRAE BEMP HBDP - LEED GA, Building Performance Consultant
Zonda
LEEDuser Basic Member
14 thumbs up

Thu, 08/18/2016 - 03:49

A server room usually has a design plug load of around 90-130 W/sqft. Lighting Load should be between 0.5 to and 1.5 W/sqft. What baseline lighting LPD you choose will make little difference to final savings and therefore I wouldn't worry too much. That said, for Building Area Method, I would choose what my experience tells me reflects better the design. Is it a 50 storeys office building with two storeys of datacenters/servers? Then I might call it an office building. Is it an acre of server rooms, and a few offices and control rooms? You could call this a Manufacturing Facility. For space by space method I would use Electrical/Mechanical 1.5 W/sqft (if office building) or Equipment Room 1.2 W/sqft (if Manufacturing).
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Marcus Sheffer
LEED Fellow
7group / Energy Opportunities
LEEDuser Expert
4454 thumbs up

Fri, 08/19/2016 - 14:54

If the fit is not precise and you have options to choose from it is usually a good idea to select the conservative approach using the lower values in the baseline.

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