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NC-2009 EAc1:Optimize Energy Performance

Mandatory 18% energy saving after April 2016

Indochine Engineering VN

Environmental Engineer, LEED AP BD+C

LEEDuser Basic Member

9 thumbs up

Project location :

Vietnam

August 9, 2016

Hi, I just read requirement of EAc1 on USGBC web page, is it true that all LEED New Construction projects registered after 8 April 2016 have to reach 18% - 4 points at minimum. So projects have energy saving less than 18% will not be able to obtain LEED certificates? I see LEED CS doesn't apply this rule. If I submited energy saving 18% to GBCI and then had to revise as per LEED reviewer, but the final result going down, less than 18%, would my project fail LEED? Thanks for your confirm

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Marcus Sheffer

LEED Fellow

7group / Energy Opportunities

LEEDuser Expert

4454 thumbs up

Tue, 08/09/2016 - 14:14

Yes.

Indochine Engineering VN

Environmental Engineer, LEED AP BD+C

LEEDuser Basic Member

9 thumbs up

Wed, 08/10/2016 - 07:55

Thanks Marcus, that's a big challenge for my garment factory which uses evaporative cooling with cooling pad, and have a lot of process load. Basically, the proposed case ventilation has just fan and pump, no air conditioning system. What would the baseline be for my factory? Will the baseline be one of 8 systems in ASHRAE or it is simply fan and pump as my proposed case?

Marcus Sheffer

LEED Fellow

7group / Energy Opportunities

LEEDuser Expert

4454 thumbs up

Thu, 08/11/2016 - 13:55

Are there any conditioned spaces? What is being pumped for HVAC?

Indochine Engineering VN

Environmental Engineer, LEED AP BD+C

LEEDuser Basic Member

9 thumbs up

Mon, 08/15/2016 - 09:11

The water is pumped and sprayed on the top of cooling pads. The hot air outside is drawn through the wet pads, cool down, coming through the space and drawn out of the factory by exhaust fans located on the opposite wall. I don’t think the factory area is simply mechanically ventilated. I think it is likely conditioned. Since 18% saving is high enough so I really need to identify the baseline. Will it be one of 8 AC system as per ASHRAE90.1 or just fan and water pump (to spray water on the pads). Your advice on selecting baseline type is highly appreciated.

Marcus Sheffer

LEED Fellow

7group / Energy Opportunities

LEEDuser Expert

4454 thumbs up

Tue, 08/16/2016 - 15:16

If it is considered conditioned (see definitions in 90.1) then yes you would select the appropriate system from Table G3.1.1A for the baseline.