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The energy cost offset from onsite renewable energy cannot be used to demonstrate compliance with the prerequisite. Can this cost offset still be credited to the proposed energy cost savings for this credit?

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Data-Centers-NC-v4 EAc2:Optimize energy performance

Lighting Power Density at Data Halls

Hello, May I seek anyone's advice on how to determine the lighting power density for data hall while there is no criteria in ASHRAE 90.1? I have ever heard of 0.8 W/ sf (treating similar to active storage), yet, ocassionally some operations would take place in data hall (although not full time), and 0.8 W/sf is definitely not enough for maintenance and operation works there. Would there be any advice which criteria we could take for comparison? Thanks!

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Marcus Sheffer
LEED Fellow
7group / Energy Opportunities
LEEDuser Expert
4454 thumbs up

Tue, 11/05/2013 - 15:05

It appears as if ASHRAE 90.1-2013 addresses computer rooms.

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